皮皮学，免费搜题
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【单选题】
消防管网水力计算的主要目的在于确定消防给水管网的 、计算消防水箱的 、选择 等A.
B.
容积
C.
设置高度
D.
消防水泵
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】--- Wow, so many new houses! I can’t believe that. It used to be a poor village. --- Yes. has changed here.
A.
Nothing
B.
Something
C.
Everything
D.
Anything
【简答题】I can’t believe that he forgot his appointment.
【简答题】对于数量过多的原始凭证，可以单独装订保管，但应在记账凭证上注明“附件另订”。 （ ）
【单选题】He must have ________ the funny story. I can’t believe that it’s true.
A.
picked up
B.
turned up
C.
done up
D.
made up
【单选题】－I can’t believe that you _______ that old trick. －Yes, I was stupid enough.
A.
dealt with
B.
fell for
C.
took in
D.
came across