单项选择题

All possible （） will be taken to ensure that this mine is entirely accident- and injury-free.

A.rules
B.details
C.guidelines
D.measures

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单项选择题

If （） has found a wallet containing cash and valuable papers, could that person please hand it in to the security desk ？

A.anyone
B.everyone
C.they
D.oneself

单项选择题

A committee of senior managers has designed a new interest rate schedule that it believes will （） many new investors.

A.observe
B.appeal
C.attract
D.engage

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