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【判断题】
如图1．7所示的三铰拱。受力F，F1作用，其中，F作用于中间铰链C的销子上，则AC、BC构件都不是二力构件。( )A.
正确
B.
错误
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举一反三
【单选题】Which of the following subordinate business structures do not do business on their own and operate only as a foreign contact point where interested parties can obtain information about the parent firm...
A.
Agent.
B.
Branch.
C.
Representative office.
D.
Subsidiary.
【单选题】When introducing to a tour group to America about what they should do when encountering any emergencies or other problems, which of the following body structures might the speaker use?
A.
Comparison and contrast.
B.
Problem-solution order.
C.
Cause-effect order.
D.
Topical order.
【单选题】Which structures do belong to the inferior mediastinum?
A.
thymus
B.
superior vena cava
C.
inferior vena cava
D.
aortic arch
【多选题】Which structures do belong to the right ventricle?
A.
tricuspid valve
B.
mitral valve
C.
orifice of the coronary sinus
D.
orifices of the pulmonary veins
E.
orifice of the pumonary trunk
【单选题】Which of the following cycle structures must be able to enter the cycle
A.
while
B.
do-while
C.
for
D.
none of the above
【判断题】Xu Cheng happened to meet Jones at the bank when Jones was withdrawing money. Xu said jokingly to him," You're really a millionaire."
A.
正确
B.
错误
【简答题】在铁碳合金相图上,按含碳量和室温平衡组织的不同,随着含碳量的增加,将铁碳合金分为六种,即 ________、__________、________、________、_________、___________ 。
【简答题】{A}在铁碳合金相图上,按含碳量和室温平衡组织的不同,将铁碳合金分为六种,__、___、____、__、___、____。
【单选题】Which structures do belong to the inferior mediastinum?
A.
trachea
B.
superior vena cava
C.
vagus nerve
D.
aortic arch
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