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问题 选择题

我们生活中做面包用的面粉和炒菜用的花生油，分别来自种子的哪一结构？（　　）

A．小麦的子叶、花生的子叶

B．小麦的胚乳、花生的子叶

C．小麦的子叶、花生的胚乳

D．小麦的胚乳、花生的胚乳

答案

答案：B

单项选择题

A government agency publishes ratings of airlines, ranking highest the airlines that have the smallest proportion of late flights. The agency’s purpose is to establish an objective measure of the relative efficiency of different airlines’ personnel in meeting published flight schedules.
Which one of the following, if true, would tend to invalidate use of the ratings for the agency’s purpose

A．Travelers sometimes have no choice of airlines for a given trip at a given time.

B．Flights are often made late by bad weather conditions that affect some airlines more than others.

C．The flight schedules of all airlines allow extra time for flights that go into or out of very busy airports.

D．Airline personnel are aware that the government agency is monitoring all airline flights for lateness.

E．(E) Flights are defined as "late" only if they arrive more than fifteen minutes past their scheduled arrival time, and a record is made of how much later than fifteen minutes they are.
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多项选择题

下面关于塔里木油田公司安全“保命”条款释义正确的有（）。

A.是保护员工生命安全的条款

B.是个人在油田职业发展的保证

C.“保命”条款所规定的内容，不容易做到

D.第一次触犯，也要承担违反条款的严重后果

E.适用于油田所有甲乙方员工
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