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【简答题】
仪器的地线和被测电路的地线应连在一起,目的是为了使仪器和电路之间建立公共 。
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【单选题】— Several department stores, including the one we usually go to, ____ sidewalk sales this week — Let's go and have a look. [ ]
A.
is having
B.
are having
C.
has
D.
have had
【简答题】句型转换 1. We usually go to school by bike.(用by bus改为选择疑问句) _____ you usually go to school by bike _____ by bus? 2. My home is about 20 miles from here. (对画线部分提问) _____ _____ is your home from here? 3. I...
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