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问题 单项选择题 A1/A2型题

固阴煎功效补肾调经，主治月水不调，其方出自（）

A.《备急千金要方》

B.《妇人良方大全》

C.《丹溪心法》

D.《景岳全书》

E.《傅青主女科》

答案

参考答案：D

选择题

物质的量浓度相等的4种溶液：①H2S、②NaHS、③Na2S、④H2S和NaHS的混合液。下列说法正确的是(　　)

A．溶液pH由大到小的顺序：③>②>①>④

B．c(H2S)由大到小的顺序：①>④>②>③

C．在Na2S溶液中：2c(Na＋)＝c(H2S)＋c(HS－)＋c(S2－)

D．在NaHS溶液中：c(H＋)＋c(Na＋)＝c(OH－)＋c(HS－)＋c(S2－)
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单项选择题

A memory--memory, machine instruction for a certain machine has the following format. (Such an instruction is similar to a register—register instruction except that the operands are displaced addresses in memory.)


Which of the following could be an assembly language instruction that would be translated into a memory—to—memory instruction for this machine( ).
A) ADD 10(R1) ,20(R2) B) ADD(10R1), (20R2)
C) ADD R1,10(R2),20 D) ADD R1,10,20(R2)
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