單項選擇題

George: Do your parents allow you to stay out late at night May: No, I am not allowed to stay late at night.George: What are you doing tonight May: ___________

A．I am reviewing my lessons．B．I review my lessons．C．My lessons reviewing．

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單項選擇題

The written permission granted by the customs authorities to allow the vessel which has br

The written permission granted by the customs authorities to allow the vessel which has brought any imports or has loaded exports to leave the port is Entry Inwards. （）A．正確B．錯誤

多項選擇題

過飽和溶液中溶劑的化學勢μ 與純?nèi)軇┑幕瘜W勢 μ * 的關(guān)系式為（）

A.μ=μ*
B.μ>μ*
C.μ
D.不能確定

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