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【简答题】
Potassium chloride is often used as a salt bridge because K + and Cl - ions have in aqueous environment.
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【简答题】执行 XOR AX,AX INC AX 后,AX寄存器和CF标志位的值为( ).A. 1 ,0 B. 0 ,0 C. 1 ,1 D. 0 ,1
【单选题】— Dear, what time is the flight to Beijing on Saturday? — Wait a minute. Let me ______ in the schedule (时刻表). [ ]
A.
look at it
B.
look for it
C.
look after it
D.
look it up