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【单选题】
在我国国民经济中发挥主导作用的是（）A.
公有制经济
B.
混合所有制经济
C.
集体经济
D.
国有经济
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举一反三
【多选题】What are the two main ways of handling the traffic?
A.
Building new ways
B.
Reducing the number of cars
C.
Using technology
D.
Raising the oil price
【简答题】试用力法求解如图12-25a所示超静定梁，并作出其弯矩图，已知梁的抗弯刚度为EI。
【简答题】试用力法求解如图12-24a所示超静定梁，并作出其弯矩图，已知梁的抗弯刚度为EI。
【单选题】(练习1-4) What does the phrases “two ways” refers to in the 6th paragraph?
A.
calling on customer and communication in writing
B.
orally and verbally
C.
by face-to-face contact and by correspondence
D.
by trade delegations and groups
【单选题】What are two ways that we can organize paragraphs according to thispresentation?
A.
introduction, body, and conclusion
B.
block style. and point-by-point style
C.
summative and narrative
D.
point-by-point style. and comparative style
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