搜题请搜索小程序“爱下问搜题”
问题 选择题

44. —Look!The boy is doing some washing.

—He is only eight years old, but he is very ________.

A．lonely

B．separate

C．responsible

D．independent

答案

答案：D

改错题

修改病句。     

1．小明即将就要小学毕业了。  

                                                                                    

2．信写好之后，要反复地修改。 

                                                                                    

3．爷爷今年大约七十岁左右。 

                                                                                    

4．我十分的想念远方地爸爸。

                                                                                    

查看答案
单项选择题

对于图示四种横截面直杆受扭时，适用公式τρ=Tρ/Iρ的截面是（）（注：除选项D外其余为空心截面）。

A.

B.

C.

D.
查看答案