本工程墙、地饰面使用天然花岗岩石材或瓷质砖的面积大于()m2时．应对不同产品、不同批次材料分别进行放射性指标复验。
A. 100
B. 150
C. 200
D. 300
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A．Playing class.B．Study English.C．Talking with others.D．Go shopping.
A. Playing class.
B. Study English.
C. Talking with others.
D. Go shopping.
【C10】
A. long time
B. period
C. moment
D. some time
According to the text, a drive-in Window is a ______.
A. car window from which you can see the driver
B. window in the restaurant from which you get your meal in the car
C. place where you check the mechanic condition of your car
D. entrance where you return the used plates after eating
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