22．My football is______ ． A． behind the door B． near the door C． behind a door

【单选题】22 A. 22 B. 22 C. 22 D. 22

I change my mind and bring back the garbage bags I have put in the car and at the curb. A: Para. 5 B: Para. 13 C: Para. 16 D: Para. 22

设两个变量X与Y，其中误差分别为mx=±30"、my=±20"，则X+Y的中误差为±36"，X-Y的中误差为±22"

某工厂生产车间３０人工人日产量原始数据如下： 20 21 21 24 23 22 20 21 22 23 24 20 24 21 22 22 23 24 22 21 22 23 22 21 21 22 22 23 22 23 试编制工人日产量频数分布表

When is the Earth Day? A: 22,March B: 22,August C: 22,April D: 22,November

表达式11+22、11+"22"、"11"+"22"、11&22、11&"22"、"11"&"22"的运算结果分别为____、____、____、____、____、____。

My mother a doctor is my father so is A: My mother is a doctor. So is my father B: My mother is a doctor. So my father is C: My mother is a doctor. My father is so.

Jack, a friend of ________, often comes to see us. A: my brother and my sister B: my brother’s and my sister C: my brother and my sister’s D: my brother’s and my sister’s

The things my daughter collected as a child carry her childhood memories and they will be there waiting for her. We will also be happy to welcome her back home. A: Para. 9 B: Para. 11 C: Para .17 D: Para .22