You can call me _________ 247-3842._刷题宝

题干

You can call me _________ 247-3842.

A：in

B：at

C：is

D：of

上一题下一题 0.0难度选择题更新时间:2019-11-07 08:40:22

答案(点此获取答案解析）

B

同类题1

在 $△ A B C$ 中，若 $A = 60^{°}, B C = 4 \sqrt{3}, A C = 4 \sqrt{2},$ ，则角B的大小为( )

同类题2

阅读短文，判断正误。
Hello, friends! Let's go on a trip to Beijing. Beijing is the capital city of our country. It's in the north of China. There is a big square in this city. Do you know its name? Its name is Tian'anmen Square. In Beijing, you can see the Bird's Nest(鸟巢). The 2008 Olympic Games were held in it. And you can see some old buildings, such as the Palace Museum. The Great Wall is also very famous in China. It's very old and long.

同类题3

a ∥ b

A C

分别交直线

a

b

B

C

A C ⊥ C D

∠ 1 = 25 °

∠ 2 =

同类题4

设随机变量X～B（8，

\frac{3}{4}

），则D（X）=____．

同类题5

如图所示，一物体以某一速度冲上表面粗糙的固定斜面，请画出物体在上滑过程中所受的重力G和摩擦力f的示意图．

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