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【简答题】
当前目录下创建文件file1; 当前目录下创建四个文件file1,file2,file3,file123(两种方法) 修改文件file2为file234 删除以file1开头的文件 删除以file开头的文件
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参考答案:
举一反三
【判断题】The protein has the properties of UV absorption, which has the maximum absorption peak at 260nm.
A.
正确
B.
错误
查看完整题目与答案
【多选题】The UV absorption properties of protein are due to the presence of
A.
tryptophan
B.
glutamic acid
C.
tyrosine
D.
aspartic acid
E.
histidine
查看完整题目与答案
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
查看完整题目与答案
【判断题】土壤中水分质量占烘干土质量的比值称为土壤容积水量
A.
正确
B.
错误
查看完整题目与答案
【简答题】Only when each ____step has been checked by other mathematicians will the proof be accepted.
查看完整题目与答案
【单选题】土壤水分质量占烘干土质量的比值为
A.
田间持水量
B.
相对含水量
C.
质量含水量
D.
土壤水贮量
查看完整题目与答案
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
查看完整题目与答案
【单选题】土壤水分质量占烘干土质量的比值为 ______, 常用百分数来表示。
A.
绝对含水量
B.
相对含水量
C.
质量含水量
D.
以上都不是
查看完整题目与答案
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted .
A.
theroy
B.
fertile
C.
logical
D.
elegant
查看完整题目与答案
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted.
A.
logical
B.
destructive
C.
bound
D.
liable
查看完整题目与答案
相关题目:
【判断题】The protein has the properties of UV absorption, which has the maximum absorption peak at 260nm.
A.
正确
B.
错误
查看完整题目与答案
【多选题】The UV absorption properties of protein are due to the presence of
A.
tryptophan
B.
glutamic acid
C.
tyrosine
D.
aspartic acid
E.
histidine
查看完整题目与答案
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
查看完整题目与答案
【判断题】土壤中水分质量占烘干土质量的比值称为土壤容积水量
A.
正确
B.
错误
查看完整题目与答案
【简答题】Only when each ____step has been checked by other mathematicians will the proof be accepted.
查看完整题目与答案
【单选题】土壤水分质量占烘干土质量的比值为
A.
田间持水量
B.
相对含水量
C.
质量含水量
D.
土壤水贮量
查看完整题目与答案
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
查看完整题目与答案
【单选题】土壤水分质量占烘干土质量的比值为 ______, 常用百分数来表示。
A.
绝对含水量
B.
相对含水量
C.
质量含水量
D.
以上都不是
查看完整题目与答案
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted .
A.
theroy
B.
fertile
C.
logical
D.
elegant
查看完整题目与答案
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted.
A.
logical
B.
destructive
C.
bound
D.
liable
查看完整题目与答案
参考解析:
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