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单选题 Under no ______ should you open the emergency exit unless you are instructed by the crew during the flight
学科：vocabulary 700
时间：2025-10-07 19:47:16
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题目1单选题
The company provides ______ training for new employees to ensure they can handle their daily work independently within a monthA. abundantB. adequateC. excessiveD. temporary
题目2单选题
Long-term exposure to air pollution can ______ people's respiratory health, increasing the risk of diseases like asthma and pneumoniaA. effectB. affectC. infectD. inspect
题目3单选题
Under no ______ should you open the emergency exit unless you are instructed by the crew during the flightA. circumstancesB. occasionsC. situationsD. surroundings
题目4单选题
The teacher nodded slightly as a ______ for the student to continue his answer, encouraging him not to stop halfwayA. signalB. cueC. hintD. clue
题目5单选题
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题目6单选题
The contract became ______ because one of the parties failed to sign it within the specified time, so both sides had to renegotiateA. suspendB. illegalC. invalidD. unlawful
题目7单选题
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题目8单选题
The key to the ______ of the spread of this infectious disease is to isolate patients in time and promote personal protective measuresA. preservationB. avoidanceC. protectionD. prevention
题目9单选题
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题目10单选题
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