皮皮学，免费搜题
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【单选题】
与无机催化剂相比,酶的特性不包括:( )A.
温和条件下起催化作用
B.
高效性
C.
专一性
D.
降低反应的活化能
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】财务费用属于成本类科目，而制造费用属于损益类科目．( )
【单选题】The place was flooded ________ it had been raining for several weeks.
A.
because
B.
because of
C.
ever since
D.
as a result of
【单选题】It_____we had stayed together for several weeks_____ I found we had a lot in common. [ ]
A.
was until; when
B.
wasn't until ; that
C.
wasn't until; when
D.
was until; that
【多选题】下列不属于旅游活动的是( )
A.
王某住在趵突泉附近，听说今年的元宵花灯很漂亮，他和朋友一同前往观赏
B.
小张前往异地进行为期一个季度的产品营销宣传
C.
王先生一家今年夏天移民到加拿大
D.
周教授到国外参加为期一周的学术会议
【单选题】Several weeks had gone by ________ I realized the painting was missing. [ ]
A.
as
B.
before
C.
since
D.
when
【简答题】试述右转车道和左转车道设置的方法、
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