【简答题】请找出下列各句中的错误并加以改正。 1. This is the factory where we visited last week. __________________________________________________________________ 2. This is the watch for which Tom is looking. _________________...
【单选题】在弹性元件中,弹簧管属于 ,其作用是
B.
弹性支承元件/用于产生与输入压力成比例的位移
D.
弹性敏感元件/用于产生与输入压力成比例的位移
【简答题】根据句意,用括号内所给单词的适当形式填空。 1. Would you mind _____ (teach) me English? 2. Shall I ____ (clean)the door now, mom? 3. Many students teach _____ (them)on the Internet now. 4. David Beckham is my favorite __...
【单选题】We visited the small village ______ in the south of the lake.
【简答题】Oct.12, 2014 Dear Sirs, We had visited the Guangzhou Fair in Oct 2014, and got your catalogue. We need the following Item: Men ’ s Shirts, style No : WX201309, small size, button down collar, long sle...
【单选题】在弹性元件中,弹簧管是属于?其作用是?
B.
弹性支承元件,用于产生与输入压力成比例的位移
D.
弹性敏感元件,用于产生与输入压力成比例的位移
【单选题】若裁判员在球没有进门的情况下错误地示意进球,他该怎样重新开始比赛
【简答题】Fill in the blanks with the suitable prepositions or adverbs.(填写适当的介词或者副词,使句子完整) 1. They arrived ________ a small village before dark. 2. The teacher put up a picture ________ the wall. 3. We visited ...