单选题：About one million Americans are diagnosed annually with skin

题目内容：

About one million Americans are diagnosed annually with skin cancer. A．every year
B．severely
C．actively
D．every month

参考答案：

答案解析：

Their business flourished at its new location a year later

Their business flourished at its new location a year later owing to their joint

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请在第__(60)__处填上正确答案。A．rare B．minor C．scarce D．regular

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Infrared radiation can produce heat__________A．when it is absorbed by matter B．w

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The air-pollution index went up to 300 within a few days.A．Right B．Wrong C．Not m

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There is no risk to public health.A．point B．danger C．chance D．hope

分类：理工类题型：单选题