题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/f543c16db243b74df7fc11c17ab8ac53.gif">B. <img src="https://tihai-oss-cloud.itihey.com/img/ab6c2e0cd18b6e28368b78e23c63930c.gif">C. <img src="https://tihai-oss-cloud.itihey.com/img/fd5d0effe3f707e2cbc92a91c38c88a6.gif">D. <img src="https://tihai-oss-cloud.itihey.com/img/0b0cb45e58dbaae8660b43866100f135.gif">