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【单选题】
(2019· 江苏卷, 10) 下列关于 DNA 粗提取与鉴定的叙述,错误的是 ( )A.
用同样方法从等体积兔血和鸡血中提取的 DNA 量相近
B.
DNA 析出过程中，搅拌操作要轻柔以防 DNA 断裂
C.
预冷的乙醇可用来进一步纯化粗提的 DNA
D.
用二苯胺试剂鉴定 DNA 需要进行水浴加热
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反馈参考答案：
举一反三
【判断题】Compensation expense must be adjusted during the service period to reflect changes in the fair value of options caused by changes in the market price of the underlying shares.
A.
正确
B.
错误
【单选题】Which of the following is notan accounting expense before it is deducted for income tax purposes? 1) Inventory write-downs 2) Deferred executive compensation 3) Estimated warranty costs 4) Prepaid exp...
A.
1
B.
2
C.
3
D.
4
【单选题】What ____________ you ____________ last weekend? [ ]
A.
are, do
B.
do, do
C.
did, do
D.
do, going
【简答题】三元件综合式液力变矩器
【单选题】Compensation expense must be adjusted during the service period to reflect changes in the fair value of options caused by changes in the market price of the underlying shares.
A.
TRUE
B.
FALSE
【简答题】装修do 将就do 对待do
【简答题】Employee compensation , a major expense of many business is __________.
【简答题】法条竞合与想象竞合的区别?
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