选择题:Listen up, guys!Everyone ________ wear a mask. Go and buy one if you don’t have

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题目内容:

Listen up, guys!Everyone ________ wear a mask. Go and buy one if you don’t have one.

A.can’t

B.can

C.mustn’t

D.must

参考答案:
答案解析:

△ABC 的内角 A, B, C 所对的边分别为 a, b, c, 已知 a= √3, b=2.

△ABC 的内角 A, B, C 所对的边分别为 a, b, c, 已知 a= √3, b=2.

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—What’s the article about, David? —It’s about some tricks on how to save and spe

—What’s the article about, David? —It’s about some tricks on how to save and spend money ______.

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—When I watched theChinas 70th Anniversary celebration on Oct. 1st, I was so ___

—When I watched theChinas 70th Anniversary celebration on Oct. 1st, I was so ________. —So was I. It

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已知圆 C 过点 A(0, 2) 且与直线 y=﹣ 2 相切, 则圆心 C 的轨迹方程为()

已知圆 C 过点 A(0, 2) 且与直线 y=﹣ 2 相切, 则圆心 C 的轨迹方程为()

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在△ABC 中, 内角 A, B, C 的对边分别为 a, b, c, 若 b=asinC, c=acosB, 则△ABC 一定是()

在△ABC 中, 内角 A, B, C 的对边分别为 a, b, c, 若 b=asinC, c=acosB, 则△ABC 一定是()

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