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【单选题】
下列有关教材实验的叙述，正确的是 [ ]A.
利用植物细胞质壁分离实验可以清晰地观察到细胞膜的结构
B.
在脂肪鉴定实验中，酒精的作用是杀死细胞，并使组织细胞分散开来
C.
利用样方法调查种群密度时，位和样方边界上的个体均要计算在内
D.
利用标志重捕法获得的种群密度比实际值偏高的主要原因是已被捕捉过的动物被再次捕捉的概率降低
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皮皮学刷刷变学霸
举一反三
【单选题】- Is my illness serious? - ____________.
A.
Well done.
B.
Don't worry. You will be well soon.
C.
Sorry, I have no idea.
D.
It's really bad for you.
【单选题】爬泳两臂的配合大致分为三种形式 , 其中 , 当一臂入水时 , 另一臂处于肩前方与水平面成 30° 角左右、刚进入水划阶段的配合形式是指 ( ) 。
A.
前交叉
B.
中交叉
C.
后交叉
D.
都不是
【单选题】But for her charming smile, he ______ her.
A.
wouldn't have married
B.
won't marry
C.
wasn't married to
D.
wouldn't marry with
【简答题】People are reluctant to admit that they don't listen well.
【单选题】— How do you like the curtains? —Well, I’m afraid they don’t ________ very well with the wallpaper.
A.
go
B.
match
C.
suit
D.
fit
【单选题】But for her charming smile, he ______ her.
A.
wasn't married to
B.
won't marry
C.
wouldn't have married
D.
wouldn't marry with
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