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单选题设分段函数,下列结论正确的是()

A.

B. 不存在

C.

D.

高等数学课程封面

学科：高等数学

时间：2025-12-02 02:52:37

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函数<img src="http://p.ananas.chaoxing.com/star3/origin/7c6dc1f4ed5d27c34d37277e121c9196.png">的定义域是()

A. <img src="http://p.ananas.chaoxing.com/star3/origin/f6036205a353fff439f7385702cc0646.png">B. <img src="http://p.ananas.chaoxing.com/star3/origin/d87500400903981ce17a5c932a35ae09.png">C. <img src="http://p.ananas.chaoxing.com/star3/origin/6eb944399d2b70eac08c53ef6970c352.png">D. <img src="http://p.ananas.chaoxing.com/star3/origin/c5631fa6a290ad7321c93b8c44a02a14.png">

设<img src="https://p.ananas.chaoxing.com/star3/origin/78b459daabb7b11d14741e5610af454f.png">,<img src="https://p.ananas.chaoxing.com/star3/origin/d0f77c2444a7315ad3123a907a9693e0.png">,则<img src="https://p.ananas.chaoxing.com/star3/origin/e2305507166da2cffc156742f9eeb8af.png">( )

A. <img src="https://p.ananas.chaoxing.com/star3/origin/04b9d1e577f31aed7aa9e4ab38560145.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/e38a48b650858caa96fcb64a88e7f216.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/f6b319850b4b2f4bee720daa03b843b8.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/2ec97135e214c6d38e67b6d8a7968f97.png">

函数<img src="https://p.ananas.chaoxing.com/star3/origin/dca321e34648f80e495fb58c05d77799.png">的反函数是( )

A. <img src="https://p.ananas.chaoxing.com/star3/origin/33058118f39083e4d0b11965771c8e49.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/8f8474a24ba1b74ca4bdbd2679e773f7.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/81b5ce5c0f7523ae96213959be1290ec.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/40b160136739d731eaf476ce9bc7e76f.png">

下列各函数中,是复合函数的是( )

A. <img src="https://p.ananas.chaoxing.com/star3/origin/52c3a9c5bfdafa32cb29d794d035d45c.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/fc26a972c3e4a7f252b73bfecae06018.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/dbf5345619435b7ddc45b20231019b14.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/0ea6fc8bd96b8b91dd53a4f8f28a110d.png">

复合函数<img src="http://p.ananas.chaoxing.com/star3/origin/bfe6d1c8c97e09a9eb0b4cfb86f75ace.png">可分解为()

A. <img src="http://p.ananas.chaoxing.com/star3/origin/233fb43142c4d246822ea157039d0fda.png">B. <img src="http://p.ananas.chaoxing.com/star3/origin/fb71dc37ea58ac62f80206eeb9b072fe.png">C. <img src="http://p.ananas.chaoxing.com/star3/origin/fde5d628409bda0aea579cda26408387.png">D. <img src="http://p.ananas.chaoxing.com/star3/origin/97d591e0143fc45db36a081799801e10.png">

设分段函数<img src="https://p.ananas.chaoxing.com/star3/origin/8c9bc21d9b66ab7d84d765690f14aa4d.png">,下列结论正确的是()

A. <img src="https://p.ananas.chaoxing.com/star3/origin/8dca216e9bd353ffdb0c5871c2c4d255.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/5e6c21bd40e56df4566c88c1ae508ed8.png">不存在C. <img src="https://p.ananas.chaoxing.com/star3/origin/8663674a37a9b70066d568d64efe67b2.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/df967202174f2ab4cbcedfe98995e6d2.png">

若<img src="http://p.ananas.chaoxing.com/star3/origin/62b52c185bb88308d16cd64de4d67043.png">,则<img src="http://p.ananas.chaoxing.com/star3/origin/25ec5746802a493043807d042f480fe6.png">的值为( )

A. 1B. 2C. 4D. <img src="http://p.ananas.chaoxing.com/star3/origin/aece0601edc357676a9032291fd3d4aa.png">

极限<img src="https://p.ananas.chaoxing.com/star3/origin/c3a5c1b98bb58f1a101446fe6a468918.png">的值为()

A. 1B. <img src="https://p.ananas.chaoxing.com/star3/origin/571c7916e4b0578413da9c5a.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/66c7ece53a0bffefc4ba0a1ea031f661.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/ce7c4f338e7c840adab9a5ebd8be3d16.png">

如果<img src="https://p.ananas.chaoxing.com/star3/origin/237cffce1f0fb4f5bbef6cefbbe59e69.png">,则<img src="https://p.ananas.chaoxing.com/star3/origin/25ec5746802a493043807d042f480fe6.png">的取值为( )

A. <img src="https://p.ananas.chaoxing.com/star3/origin/0fce97c53b218256b629955d340801ec.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/03874937878da78be329892fbd3bf6b2.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/529a0cf3beccdb0eba997e1a6806e9c3.png">D. 6

函数<img src="http://p.ananas.chaoxing.com/star3/origin/b1263c923f0d1fb728f76d008b86958a.png">,在点<img src="http://p.ananas.chaoxing.com/star3/origin/a415bcd252d42ef2a3ff85ffac5d0c00.png">处( )

A. 连续B. 极限存在C. 有定义D. 为间断点

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