He had a wonderful childhood, _____ with his mother to all corners of the world._刷题宝

题干

He had a wonderful childhood, _____ with his mother to all corners of the world.

A：travel

B：to travel

C：traveling

D：traveled

上一题下一题 0.0难度选择题更新时间:2018-02-25 11:05:17

答案(点此获取答案解析）

C

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铜锌合金俗称黄铜．下列不易鉴别黄铜与真金的方法是（　　）

同类题2

现有含少量KCl、K₂SO₄、K₂CO₃杂质的KNO₃溶液，选择适当的试剂除去杂质，得到纯净的KNO₃固体，实验流程如图所示

注：KNO₃固体容易受热分解；HNO₃易挥发．

同类题3

读—读，将句子编号写在相应的图片下面。

①—Who is he?

—He's my father.

②— Who is she?

— She is my grandmother.

③—Who is she?

—She's my mother.

④—Who is he?

—He's my grandfather.


____	____	____	____

同类题4

核电站泄漏的污染物中含有碘131和铯137.碘131的半衰期约为8天，会释放β射线．铯137是铯133的同位素，半衰期约为30年，发生衰变时会辐射γ射线．下列说法正确的是(　　)

同类题5

如图，若以解放公园为原点建立平面直角坐标系，则博物馆的坐标为（　　）

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