单选题：The drinking water has becomecontaminatedwith lead．

题目内容：

The drinking water has becomecontaminatedwith lead． A．polluted
B．treated
C．tested
D．corrupted

参考答案：

答案解析：

The rules are toorigidto allow for human error．

The rules are toorigidto allow for human error．A．general B．complex C．inflexible

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The proposal wasendorsedby the majority Of members．A．rejected B．approved C．submi

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请在第__(59)__处填上正确答案。 A．resort B．refer C．turn D．attend

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Which of the following is NOT true of the scoring system for diving____A．It is m

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When was the Fraunhofer Society founded____?A．In 1940. B．Last year. C．After the

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