皮皮学，免费搜题
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【单选题】
慢粒白血病的化疗药物首选:A.
白消安
B.
苯了酸氮
C.
羟基脲
D.
x-干扰素
E.
阿糖胞苷
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举一反三
【单选题】下列说法正确的是
A.
一定条件反应：2CO(g) CO 2 (g)+C(s)可自发进行，则该反应的△H＞0
B.
向硫酸亚铁溶液中滴加硫氰化钾溶液产生血红色沉淀说明溶液已变质
C.
在反应KClO 3 +6HCl(浓)=KCl+3Cl 2 ↑+3H 2 O中，当生成1.5mol Cl 2 时，反应中转移的电子数为2.5N A
D.
相同物质的量浓度的下列溶液：①NH 4 HSO 4 ②NH 4 Cl③NH 3 ·H 2 O，水电离程度由大到小的顺序是：①>②>③
【单选题】动作脚本butterfly._x = butterfly._x-10;可简写成。
A.
butterfly_.x +=10;
B.
butterfly._x =-10;
C.
butterfly_.x -=10;
D.
butterfly._x -=10;
【简答题】It is ______ to compare the number of species of ant and butterfly.
【简答题】iMoD was developed from studies of butterfly wings.
【单选题】Which of the following statements concerning butterfly valves is correct?
A.
Special tools are required for lapping or grinding
B.
It is impossible to throttle flow with a butterfly valve
C.
To close the valve, it is only necessary to turn the handle a quarter of a turn
D.
The butterfly valve should never be used in a freshwater system
【简答题】A Play: Four Butterflies(蝴蝶) Characters: Red Butterfly (RB), Green Butterfly (GB), Green Tree (GT), Rose (R), Grandpa Sun (GS) Look! There are four butterflies in the garden. One is red, one is yellow...
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