依据《安全生产法》的规定，安全生产监督检查人员应当将检查的（）作出书面记录，并由检查人员和被检查单位的负责人签字。

6，19，7，12，8，（）。

A．4
B．5
C．9
D．10

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The problem Howe was trying to solve was______.A．what kind of thread to useB．how to design a needle which would not breakC．where to put the needleD．how to get the thread to run smoothly around the needle

A.
A．what
B.how
C.where
D.how

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