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参考答案:
举一反三
【单选题】闭合导线测内角时角度闭合差的分配原则是反符号按( )分配。
A.
平均
B.
大小
C.
观测顺序
D.
任意
【单选题】Lying between machine languages and high-level languages are languages which called _______ .
A.
basic languages
B.
4GL
C.
assembly languages
D.
C language
【判断题】在交流电路 u =220cos(100πt+30) V中,其频率为100Hz,有效值是220V
A.
正确
B.
错误
【单选题】下述结核分枝杆菌特征正确的是
A.
革兰染色阴性
B.
在培养基上生长迅速
C.
抗酸染色阴性
D.
在培养基上生长缓慢
E.
对热抵抗力强
【单选题】What crop did Thoreau cultivate at his cabin?
A.
squash
B.
tomatoes
C.
beans
D.
pumpkins
【单选题】How long did Thoreau live in the woods of Walden Pond?
A.
one year.
B.
Two years.
C.
One year and one month.
D.
Two years and two months.
【单选题】阿基米德数Ar是决定射流弯曲程度的主要因数,则在冷射流时( )。
A.
Ar<1
B.
Ar>0
C.
Ar=1
D.
Ar<0
【单选题】3 现代国际结算使用的主要工具是
A.
票据
B.
现金
C.
信用证
D.
汇票
【单选题】Mr. Brown doesn't think that all bad languages should be allowed. In his opinion, there are ______ that should be kept up.
A.
degrees
B.
standards
C.
levels
D.
limits
【单选题】On what day did Thoreau move into his cabin?
A.
Independence Day
B.
Easter
C.
Labor Day
D.
Christmas
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