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【单选题】
His mother _______ when he called just now. [ ]A.
is cooking
B.
cooked
C.
was cooking
D.
would cook
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【单选题】A snatch block is a（）.
A.
block used only with manila rope
B.
chock roller
C.
hinged block
D.
strong block used for short，sharp pulls
【简答题】A．The science block. B．The library. C．The maths block. D．The west block.
【简答题】在原子吸收分析的干扰中，非选择性的干扰是______干扰，有选择性的是______干扰。
【简答题】在原子吸收分析的干扰中,非选择性的干扰是( )干扰,有选择性的干扰是( )干扰
【简答题】在原子吸收分析的干扰中,非选择性的干扰是 ,有选择性的是 干扰。
【单选题】If there are more than one catch block in a try...catch, which catch block is chosen?
A.
Each catch block is examined in turn from first to last to see whether the type of the exception object is proper.
B.
Find the most common catch block without considering the order of catch block.
C.
Find the most matching catch block without considering the order of catch block.
D.
None of the above is right.
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