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【单选题】
在下列哪些情况下舵的背流面容易出现空泡现象______。 Ⅰ.使用大舵角时;Ⅱ.船舶高速前进时;Ⅲ.舵的前端曲率大时;Ⅳ.舵的背面吸入空气时。
A.
Ⅰ~Ⅲ
B.
Ⅱ~Ⅳ
C.
Ⅰ,Ⅱ,Ⅳ
D.
Ⅰ~Ⅳ
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参考答案:
举一反三
【单选题】管理员使用SecureCRT同时使用telnet登录多个网络设备进行管理,此时承载telnet数据的TCP协议,是通过( )来区分不同的连接的。
A.
IP地址
B.
端口号
C.
IP地址和端口号
D.
MAC地址、IP地址和端口号
【判断题】报纸及时性强但容量小,因此文章应短小精悍;而刊物虽然周期较长,但容量大,适合刊登一些有深度的文章。()
A.
正确
B.
错误
【单选题】People who voluntarily worked as servants for several years in exchange for passage to America were called indentured servants.
A.
Y
B.
N
C.
NG
【简答题】Who did the people usually give letters to after the English colonists just arrived at America?
【多选题】某普通合伙企业有甲、乙、丙三个合伙人,合伙协议约定合伙人之间承担债务的比例是5∶3∶2。该合伙企业欠丁货款40万元,合伙企业财产价值为20万元。丁在得到合伙企业财产20万元之后,其余20万元可以要求( )。
A.
甲全部偿还
B.
乙全部偿还
C.
丙全部偿还
D.
甲偿还10万元,乙偿还6万元,丙偿还4万元
【单选题】According to the recommendation of the CDC, when should people receive vaccinations in America?
A.
People should receive a vaccination one or two weeks earlier before influenza activity.
B.
People should receive a vaccination before the influenza epidemic.
C.
People should get flu shots in March when the influenza activity ends.
D.
People should get flu shots before October so as to develop antibodies.
【单选题】There are differences in spelling and pronunciation_______ AmE and BrE. That means AmE is more or less different _________BrE.
A.
between; from
B.
from; in
C.
in; between
D.
from ; between
【单选题】The first attempt made by European people to settle down permanently in North America occurred in the 1580s.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】关于单胃动物表观代谢能计算公式正确的是
A.
AME=GE-FE-UE
B.
AME=GE-FE+UE
C.
AME=GE+FE+UE
D.
AME=GE+FE-UE
【简答题】The traditional distinction between products that satisfy needs and those that satisfy wants is no longer adequate to describe classes of products. In today’s prosperous societies, the distinction has...
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