(单选题)13: 用来确保输出轴和变速齿轮锁在一起同速转动的部件称为 。 A: 同步器 B: 换档杆系 C: 换档拨叉 D: 都不是 ...

(单选题)7: 前轮前束是为了消除（ ）带来的不良后果 A: 车轮外倾 B: 主销后倾 C: 主销内倾 ...

(单选题)1: 对离合器的主要要求是：（　　） A: 接合柔和，分离彻底 B: 接合柔和， 分离柔和 C: 接合迅速，分离彻底 ...

(单选题)21: In the last few years, the Internet and the World Wide Web have become ( ) words; al most everyone has heard of them. A: family B: home C: house D: household ...

(单选题)22: For convenience's sake, most coupl es in America have a ( ) bank account instead of separate accounts. A: twin B: handy C: dual D: joint ...

(单选题)4: Niagara Falls is a great tourist ________, drawing millions of visit ors every year. A: attention B: attraction C: appointment D: arrangement ...

(单选题)13: Three people went killed in the bomb explosion, but police have not yet identified the （ ） . A: representatives B: statistics C: victims D: circumstances ...

(单选题)21: _______ as it was at such a ti me, his work attracted much attention. A: Being published B: Published C: Publishing D: To be published ...

(单选题)22: It is essential that these application forms ________ back as early as possible. A: must be sent B: will be sent C: are sent D: be sent ...

(单选题)17: The 12-year-old boy’s goal is to specialize ______ Western history in the future. A: on B: to C: in D: at ...