焊接电缆应用整根导线，如需用短线接长时，则接头不应超过（）个。
A.1
B.2
C.3
参考答案：B
The soccer team has been doing well this season, so they _____ win the championship. [ ]
A. should
B. might
C. would
D. could
进行遥控分合操作时，按先后顺序分为遥控选择、返校和执行几个步骤完成（）
