主令电器很多,其中有()。
A、接触器
B、行程开关
C、热继电器
参考答案:B
—Excuse me. Where's the bookshop?
—Go straight on. It's the ninth shop on the left. You ____. [ ]
A. can't forget it
B. can't miss it
C. can't see it
D. don't meet it
在新航路开辟过程中到过亚洲的航海家是:
①迪亚士 ②哥伦布 ③达·伽马 ④麦哲伦
A.①②
B.②③
C.③④
D.②④