一个正方体，棱长是3厘米，它的表面积是______平方厘米，体积是______立

Mom says we ________clean the room right now.[ ]

A. not have to    

B. not to have to      

C. don't have to

所有外国人入境都应当办理相应签证，但持联程客票并已定妥联程座位，在（）小时内乘坐民航飞机过境中国2个或者2个以上城市的，可免办过境签证，但须向中国边防检查站申请办理停留许可手续。

A.12

B.24

C.48

D.72

根据句意及首字母提示，在空白处填入适当的单词。

小题1:—How often does Jim go to the library?

—He goes to the library o__________ a week.

小题2: W_________ comes after Tuesday.

小题3:There is a soccer game b_________ Class 3 and Class 4 on the playground at 4:30 p. m. on Friday.

小题4:—Do you like l_________ to music?

—Yes, very much.

小题5:—Where is John now?

—He is w___________ a letter in the classroom.

如何理解真理的客观性？

上市公司应当在每个会计年度的前6个月结束后（）日内编制完成中期报告。

A.30

B.45

C.60

D.90