要将旋转运动转换成平稳又能增力的直线运动可采用()传动。
A、齿轮
B、齿条
C、蜗杆
D、螺旋
参考答案:D
第二节 根据中文,完成句子(每空0.5分,共10分)
86.只有持续锻炼一个月后你才能完全康复。
Only after you keep on practising for a month_____ _______completely recover.
87.这幅漂亮的图画吸引了我的注意力。
The beautiful picture _________ ________ _________.
88.我们提前完成了任务,希望得到领导的表扬。
We finished the task ahead of time, ________ ________ ________ _______being praised by the leader.
89.我们到达了一个看起来像超市的地方。
We reached _______ ________ _______ a super market.
90.他母亲死于车祸,使得他的家境更加艰难。
His mother died in a traffic accident , ________ the family even _________ ________.
91.他因谋杀被处死。
He was _______ ________ ________for murder.
92.他花了30 年才建立自己的公司。
He spent 30 years _________ ________ his own company.
甲、乙、丙等五人站成一排,要求甲、乙均不与丙相邻,则不同的排法种数为( )
A.72种
B.52种
C.36种
D.24种