【单选题】For someone who feels he must act, it is very likely that______.
A.
he will become a film star at long last
C.
he will end up without becoming a film star
D.
he will become a stage manager
【单选题】关于四行程发动机工作原理,下列说法错误的是( )。
A.
依次完成进气、压缩、做功、排气,一个工作循环曲轴转过了720°
B.
多缸发动机曲轴每转二圈,每个气缸都要作功一次
C.
各气缸完成一个工作循环,其进排气门各开启二次
D.
在发动机四个冲程中,只有做功冲程向外输出功率
【简答题】We had a very ____________ (tire) day yesterday.
【简答题】A.He must be a very strong man. B.He or she must have technical knowledge. C.He or she be able to read and speak English D.He or she be a very wealthy businessperson.
【单选题】He is very rich, so he______.
B.
should have made a fortune
C.
must have made a fortune
【简答题】He looks very tired . He ____ to bed too late last night . A.must go B.must have gone C.could go D.didn''t go
【单选题】He fell asleep immediately last night. He ______ very tired.
【单选题】对于四冲程发动机来说,每一个工作循环中只有一个行程对外输出功率,而其余三个行程都要消耗功,这个对外输出功率的行程是( )
【单选题】He was taken away by the police. He _________ a very serious crime.