— Mr. Hurst, could I join in your after-class activity from tomorrow on?— Of course, Jenney. You can_刷题宝

题干

— Mr. Hurst, could I join in your after-class activity from tomorrow on?

— Of course, Jenney. You can come every Tuesday and Friday afternoon.

A：take part in

B：cheer up

C：guard against

上一题下一题 0.0难度选择题更新时间:2019-02-26 10:51:49

答案(点此获取答案解析）

A

同类题1

解释下列词语。

①英俊

②悲伤

同类题2

已知椭圆C：

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}}

=1（a＞b＞0）的短轴长为2，离心率e=

\frac{\sqrt{2}}{2}

（Ⅰ）求椭圆C的方程；

（Ⅱ）若直线l：y=kx+m与椭圆交于不同的两点A，B，与圆x²+y²= $\frac{2}{3}$ 相切于点M．

（i）证明：OA⊥OB（O为坐标原点）；

（ii）设λ= $\frac{| A M |}{| B M |}$ ，求实数λ的取值范围．

同类题3

下列词语划线字注音完全准确的一项是（）

同类题4

— ______ is the street crowded with so many people?

— Because they are waiting to watch the boat races.

同类题5

Wang Hong likes travelling, so she does some _________ every year.

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