图示电路中,电流有效值I1=10A,Ic=8A,总功率因数为1,则电流I是()。 A

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问题:

图示电路中,电流有效值I1=10A,Ic=8A,总功率因数为1,则电流I是()。

A.2A

B.6A

C.不能确定

D.18A

考点:一级注册结构工程师一级结构师基础知识一级注册结构工程师基础知识历年真题
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龙岩市有着丰富而独特的旅游资源.据报道,去年我市接待游客4340800人次,用科学记数法表示约为         人次.(保留两个有效数字)

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阅读理解。
 
     The "Snow Castle" park opens in
Mudanjiang City, North China's
Heilongjiang Province, December 22, 2008.
Different kinds of snow sculptures are
exhibited at the "Snow Castle",
which attracts many visitors.
[Xinhua]

     BEIJlNG--Police and forestry workers at a section
of the Great Wall in northern Beiiing,said an interview
with Xinhua Tuesday they had taken photos of "wild wolf"
near the Great Wall. Nearly 60 years ago, wild wolves used
to haunt here. The Great Wall was a major habitat (栖息地)
for wild beasts in ancient times. It's good news that wolves
are coming back.

     Since the financial crisis (金融危机) has
struck the whole world, buying Christians
gifts is "going to be impossible" for many
families. Instead of showing their family
members or friends with expensive gifts
from shops,people would like to make nice
Christmas gifts by hand. How do you plan
to have a wonderful Spring Festival?


Jinbao Jie has been known as a hotel street
because of some star hotels along it:Li Garden
is one of the few Cantonese (广东) restaurants
in Beijing considered authentic by food. Xia Nan
Guo is a modem Shanghai style eatery with
nutritious and natural cuisine. Jing Ya is a restaurant
known in Beijing for its east Shandong seafood.
Legend ale Hotel has a good French restaurant.
It is said that Da Dong Roast Duck Restaurant will
open a new branch here next year.
1. People go to ________ to see snow sculptures.
A. Jinbao Jie
B. Great wall
C. Mudanjiang City
D. Liaoning City
2. Wild wolves used to live near the Great Wall in around ________.
A. 2008
B. 1960
C. 1968
D. 1948
3. For this Christmas, people would like to make Christmas gifts instead of ________.
A. doing Christmas shopping
B. sending Christmas cards
C. greeting their friends and family members
D. saying "Merry Christmas"
4. If you want to have Shandong seafood, you should go to ________.
A. Xia Nan Guo
B. Jing Ya
C. Legendale
D. Li Garden
题型:单项选择题

一个长方形桌面长12分米,宽8分米,它的周长是多少?如果把2张桌子拼成一张长桌子,桌面的周长是多少分米?

题型:单项选择题

根据激励理论,激励水平取决于对目标的效价、效价的期望值、()、奖酬、个人的需要。

题型:单项选择题

渴喜热饮,饮水不多属于()

A.中气不足

B.阴虚火旺

C.瘀血内阻

D.热入营血

E.痰湿内停

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