涵洞按照形式可分为( )。A.管式涵 B.盖板涵 C.拱涵与箱涵 D.倒虹吸

题型:多项选择题

问题:

涵洞按照形式可分为( )。

A.管式涵

B.盖板涵

C.拱涵与箱涵

D.倒虹吸

考点:公路工程监理工程师工程系列(道路与桥梁)道路与桥梁
题型:多项选择题
根据短文内容,完成下面表格。
     Taiwan lies in the southeast of China. It's the largest island in China. It has an area of about 36, 000
square kilometers and it has a population of over 20, 000, 000. It is rich in natural resources. Bananas, rice,
tea and so on are famous at home and abroad. Clothes, food and so on are also well-known all over the
world. Its beautiful scenery, such as Sun-Moon Lake and Mount Ali, and its wonderful climate make more
and more travelers come to Taiwan.
     Taiwan has been part of China since ancient times. Most people of the island came from Fujian and
Guangdong provinces. All the people on both sides of the strait (海峡) have a strong wish to unite our
motherland (祖国统一).
Taiwan Island
Location (地点)In the 1_______ of China.
AreaAbout 2_______ square kilometers.
3_______Over 20, 000, 000.
Natural resourcesBananas, 4_______, tea and so on.
Scenery 5_______ and Mount Ali.
题型:多项选择题
已知|
a
|=
3
,|
b
|=2
3
a
.
b
=-3,则
a
b
的夹角是(  )
A.150°B.120°C.60°D.30°
题型:多项选择题

全球化具有哪些特征?

题型:多项选择题

与基牙接触面积最小的卡环是

A.单臂卡环
B.双臂卡环
C.间隙卡环
D.Ⅰ杆卡环
E.T形卡环

题型:多项选择题

晚明时期,葡萄牙从中国进口最多的是()。

A.生丝

B.丝织品

C.朱砂

D.黄金

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