选择题:How do you plan on paying for your travelling cost

题目内容:
How do you plan on paying for your travelling costs ?
A、Here are the receipts.
B、I have a housing contract with the university.
C、My father has already paid for that in advance.
D、I.ll be here for about a year.

参考答案:

填空题,20分] 设 是圆柱面x2+y2=4 介于 , z=3之间部分的外侧,则 .

填空题,20分] 设 是圆柱面x2+y2=4 介于 , z=3之间部分的外侧,则 .

查看答案

【判断题】法律是由国家创制和实施的行为规范,与人民无关。( )

【判断题】法律是由国家创制和实施的行为规范,与人民无关。( )

查看答案

[单选题,50分] 函数y=sin2x的导数为:A.cos2xB.-cos2xC.2cos2xD.-

[单选题,50分] 函数y=sin2x的导数为:A.cos2xB.-cos2xC.2cos2xD.-2cos2x

查看答案