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【简答题】
ZD6型转辙机的挤切销用于连接动作杆和齿条块,挤岔时( )被切断,使动作杆和齿条块分离,避免机件损坏。( )用于监督挤切销受损状态,道岔被挤或挤切销折断时,断开道岔表示,并接通挤岔报警电路。
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举一反三
【单选题】Hi, Mark. How was the musical evening? — Excellent! Ales and Andy performed _________ and they won the firs prize.
A.
skillfully
B.
commonly
C.
willingly
D.
nervously
【单选题】-- Hi, Lucy. We won the match yesterday. --_________!
A.
Congratulations
B.
Excuse me
C.
No problem
D.
Never mind
【简答题】As long as there is water, plants won ’t die quickly.英译汉
【单选题】— Hi, Mark. How was the musical evening? — Excellent! Ales and Andy performed _____ and they won the first prize. [ ]
A.
skillfully
B.
commonly
C.
willingly
D.
nervously
【单选题】Trump quickly won his party's nomination to ____ the elections.
A.
contract
B.
contest
C.
contact
D.
content
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