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【单选题】
下列化合物不能用碘和氢氧化钠溶液鉴别的是 )。
A.
甲醇和乙醇
B.
2-戊酮和3-戊酮
C.
乙醛和丙酮
D.
2-戊醇和3-戊醇
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参考答案：
举一反三
【单选题】Sarah earns $40,000 per year working for a large corporation. She is thinking of quitting this job to work full time in her own business. She will invest her savings of $50,000 (which currently has an...
A.
$90,000.
B.
$0.
C.
$45,000.
D.
$40,000.
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【单选题】以下不属于探针分类的是( )。
A.
DNA探针
B.
RNA探针
C.
单链rDNA探针
D.
单链cDNA探针
查看完整题目与答案
【单选题】Sarah earns enough money from her painting to
A.
give up her computing job.
B.
pay for her flat and car.
C.
pay for her artist's materials.
查看完整题目与答案
【单选题】Computer programmer David earns $40,000 a year designing new computer games, yet he cannot find a bank to let him have a credit card. Instead, he has been told to wait another two years until he is 18...
A.
He often goes out with friends.
B.
He lives with his mother.
C.
He has a handsome income.
D.
He graduated with six O-levels.
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【单选题】“流感”和“新型肺炎”的区别,以下不正确的是:
A.
都有疫苗
B.
都有传染性
C.
都是病毒造成的
D.
都会咳嗽
查看完整题目与答案
【单选题】His ______ income is $36,000； that is, he earns $3,000 a month.
A.
monthly
B.
month
C.
annually
D.
annual
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【单选题】His an( ) income (收入) is $36,000; that is, he earns $3,000 a month.
A.
annually
B.
annuals
C.
anniversary
D.
annual
查看完整题目与答案
【单选题】石材、地面砖面层铺设完毕后,凡单块砖边角有局部空鼓,且每自然间(标准间)不超过总数的 可不计。
A.
5%
B.
10%
C.
15%
D.
20%
查看完整题目与答案
【单选题】就理论而言，下列逻辑覆盖指标中，覆盖能力最强的是：
A.
语句覆盖
B.
判定覆盖
C.
条件覆盖
D.
条件组合覆盖
查看完整题目与答案
【简答题】His an income ( 收入 ) is $36,000; that is, he earns $3,000 a month.
查看完整题目与答案
相关题目：
【单选题】Sarah earns $40,000 per year working for a large corporation. She is thinking of quitting this job to work full time in her own business. She will invest her savings of $50,000 (which currently has an...
A.
$90,000.
B.
$0.
C.
$45,000.
D.
$40,000.
查看完整题目与答案
【单选题】以下不属于探针分类的是( )。
A.
DNA探针
B.
RNA探针
C.
单链rDNA探针
D.
单链cDNA探针
查看完整题目与答案
【单选题】Sarah earns enough money from her painting to
A.
give up her computing job.
B.
pay for her flat and car.
C.
pay for her artist's materials.
查看完整题目与答案
【单选题】Computer programmer David earns $40,000 a year designing new computer games, yet he cannot find a bank to let him have a credit card. Instead, he has been told to wait another two years until he is 18...
A.
He often goes out with friends.
B.
He lives with his mother.
C.
He has a handsome income.
D.
He graduated with six O-levels.
查看完整题目与答案
【单选题】“流感”和“新型肺炎”的区别,以下不正确的是:
A.
都有疫苗
B.
都有传染性
C.
都是病毒造成的
D.
都会咳嗽
查看完整题目与答案
【单选题】His ______ income is $36,000； that is, he earns $3,000 a month.
A.
monthly
B.
month
C.
annually
D.
annual
查看完整题目与答案
【单选题】His an( ) income (收入) is $36,000; that is, he earns $3,000 a month.
A.
annually
B.
annuals
C.
anniversary
D.
annual
查看完整题目与答案
【单选题】石材、地面砖面层铺设完毕后,凡单块砖边角有局部空鼓,且每自然间(标准间)不超过总数的 可不计。
A.
5%
B.
10%
C.
15%
D.
20%
查看完整题目与答案
【单选题】就理论而言，下列逻辑覆盖指标中，覆盖能力最强的是：
A.
语句覆盖
B.
判定覆盖
C.
条件覆盖
D.
条件组合覆盖
查看完整题目与答案
【简答题】His an income ( 收入 ) is $36,000; that is, he earns $3,000 a month.
查看完整题目与答案
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