—You missed the train? —Yes. I had gone

The teacher gave the students a day _______ on Children's Day. [ ]

A. away    

B. off    

C. out    

D. in

小题1:Help _▲_ (you) to anything you like, kids.

小题2:. Kate is looking for some _▲_ (far) information about Li Na on the Internet.

小题3: Itchy Feet fell _▲_ (sleep) shortly after he lay down.

小题4:On his_▲_ (40) birthday , he swam across the channel.

小题5: His mother’s death brings him _▲_ (sad)because he likes her very much.

小题6:Last night,the doctor _▲_ ( 手术)on the 11-year-old boy.

小题7:Eating less is not a healthy way to _▲_ (减少)your weight．

小题8:It’s about five_▲_ (分钟)walk from here to the new supermarket．

小题9:The audience shouted and cheered _▲_ (兴奋).

小题10:Many people in poor countries have no money for_▲_ ( 医学) treatment.

氟利昂制冷系统进行压力检漏时应采用（）。

A.本机加压

B.空压机试压

C.压缩空气

D.氮气

下列的数据库管理系统属于网状模型的是

A．IMS数据库管理系统

B．CODASYL系统

C．ORACLE系统

D．FOXBASE系统

杆型卡环与圈形卡环比较，不足之处是

A．对基牙的侧向力较大

B．弹性较差

C．固位作用较差

D．稳定作用较差

E．美观效果