皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
单选题：2、下列哪种万向节属于等速万向节？（ ）
A.
十字轴式万向节
B.
球笼式万向节
C.
答案A，B都不对
D.
答案A，B
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【单选题】What is the main purpose for holding such a special contest?
A.
To encourage hackers to attack big companies.
B.
To knock some unsecured websites offline.
C.
To get some analysis data for preventing attacks.
D.
To prove hacker's professional skills on computer.
查看完整题目与答案
【单选题】An old woman was badly hurt in ______ the police describe as an apparently motiveless attack.
A.
that
B.
which
C.
what
D.
whatever
查看完整题目与答案
【单选题】It's implied that ______.
A.
nuclear power stations may become the targets of terrorist attack
B.
Carbon dioxide is the principal source of greenhouse gas
C.
The Bush administration doesn't give due weight to environment protection
D.
Nuclear waste will turn to be an environmental threat in the long-run term
查看完整题目与答案
【单选题】According to Paragraph 5, when followed by geese, a fox will______.
A.
be irritated and attack the geese
B.
run away at once and in a frightened way
C.
move slowly away so as not to lose face
D.
stop in front of the geese and facing them
查看完整题目与答案
【单选题】用托盘天平测物体质量前,调节横梁平衡时,发现指针在分度盘中线的左侧,这时应该( ) A .将游码向左移动 B .将右端平衡螺母向左旋进一些 C .将游码向右移动 D .将右端平衡螺母向右旋出一些
A.
B.
C.
D.
D
查看完整题目与答案
【单选题】Which of the following statements is NOT mentioned in the passage?
A.
Malaria is under attack in a number of countries.
B.
Some types of mosquitoes have become resistant to the current sprays.
C.
New poisons have been put into wide use with the new science.
D.
One of human's challenges is to win the campaigns against mosquitoes.
查看完整题目与答案
【单选题】下列数字中有效数字的位数为4位的是（ ）。
A.
[OH - ]=3.750 ×10 -4 mol/L
B.
ω (Mn)=1.4032
C.
pH=10.53
D.
[H + ]=0.0030mol/L
查看完整题目与答案
【单选题】下列数字中有效数字位数为4位的是（ ）。
A.
1203.0
B.
0.0245
C.
pH=4.451
D.
11.40%
查看完整题目与答案
【单选题】下列数字中有效数字的位数为4位的是（ ）。
A.
m（KHP）=0.5736g
B.
ω (Mn)=1.4032
C.
pH=10.53
D.
[H + ]=0.0030mol/L
查看完整题目与答案
【单选题】According to the passage, which of the following is the major lesson learned from the attacks on the London Underground?
A.
The government should propose new laws stopping the Islamic diaspora.
B.
The British army should pull out from the Iraqi war.
C.
The government should guard against the Islamic bombers.
D.
Europeans should draw their attention to the Muslim minority.
查看完整题目与答案
相关题目：
【单选题】What is the main purpose for holding such a special contest?
A.
To encourage hackers to attack big companies.
B.
To knock some unsecured websites offline.
C.
To get some analysis data for preventing attacks.
D.
To prove hacker's professional skills on computer.
查看完整题目与答案
【单选题】An old woman was badly hurt in ______ the police describe as an apparently motiveless attack.
A.
that
B.
which
C.
what
D.
whatever
查看完整题目与答案
【单选题】It's implied that ______.
A.
nuclear power stations may become the targets of terrorist attack
B.
Carbon dioxide is the principal source of greenhouse gas
C.
The Bush administration doesn't give due weight to environment protection
D.
Nuclear waste will turn to be an environmental threat in the long-run term
查看完整题目与答案
【单选题】According to Paragraph 5, when followed by geese, a fox will______.
A.
be irritated and attack the geese
B.
run away at once and in a frightened way
C.
move slowly away so as not to lose face
D.
stop in front of the geese and facing them
查看完整题目与答案
【单选题】用托盘天平测物体质量前,调节横梁平衡时,发现指针在分度盘中线的左侧,这时应该( ) A .将游码向左移动 B .将右端平衡螺母向左旋进一些 C .将游码向右移动 D .将右端平衡螺母向右旋出一些
A.
B.
C.
D.
D
查看完整题目与答案
【单选题】Which of the following statements is NOT mentioned in the passage?
A.
Malaria is under attack in a number of countries.
B.
Some types of mosquitoes have become resistant to the current sprays.
C.
New poisons have been put into wide use with the new science.
D.
One of human's challenges is to win the campaigns against mosquitoes.
查看完整题目与答案
【单选题】下列数字中有效数字的位数为4位的是（ ）。
A.
[OH - ]=3.750 ×10 -4 mol/L
B.
ω (Mn)=1.4032
C.
pH=10.53
D.
[H + ]=0.0030mol/L
查看完整题目与答案
【单选题】下列数字中有效数字位数为4位的是（ ）。
A.
1203.0
B.
0.0245
C.
pH=4.451
D.
11.40%
查看完整题目与答案
【单选题】下列数字中有效数字的位数为4位的是（ ）。
A.
m（KHP）=0.5736g
B.
ω (Mn)=1.4032
C.
pH=10.53
D.
[H + ]=0.0030mol/L
查看完整题目与答案
【单选题】According to the passage, which of the following is the major lesson learned from the attacks on the London Underground?
A.
The government should propose new laws stopping the Islamic diaspora.
B.
The British army should pull out from the Iraqi war.
C.
The government should guard against the Islamic bombers.
D.
Europeans should draw their attention to the Muslim minority.
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题