皮皮学，免费搜题
登录
搜题
【单选题】
某质点的运动方程为x=3t-5t^3+6(SI,国际单位制) ,则该质点作 ( ) 。
A.
匀加速直线运动，加速度沿x 轴正方向
B.
匀加速直线运动，加速度沿x 轴负方向
C.
变加速直线运动，加速度沿x 轴正方向
D.
变加速直线运动，加速度沿x 轴负方向
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】三个电阻值分别为10欧姆、20欧姆、50欧姆的电阻串联，串联后的总电阻值是（   ）？
A.
80欧姆
B.
50欧姆
C.
5.88欧姆
D.
0.17欧姆
查看完整题目与答案
【简答题】His few material possessions make it possible for him to move from place to place with ease.
查看完整题目与答案
【判断题】婚姻是家庭产生的重要前提,家庭又是缔结婚姻的必然结果。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在颜色调板中用鼠标右键单击键钮后，将会（）
A.
关闭调色板
B.
将所选对象的填充色设为无色
C.
关闭CorelDRAWX4
D.
将所选对象的轮廓线设为无色
查看完整题目与答案
【单选题】The news is that China is holding the biggest trade fair in the world.
A.
latest
B.
ultimate
C.
final
D.
last
查看完整题目与答案
【简答题】为评价家电行业售后服务的质量,随机抽取了 100 家庭。 服务质量的等级分别表示为: A. 好; B. 较好; C. 一般; D. 差; E. 较差。 调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C ...
查看完整题目与答案
【简答题】为评价家电行业售后服务的质量,随机抽取了由100个家庭构成的一个样本。服务质量的等级分别表示为:A.很好;B.较好;C.一般;D.较差;E.很差。调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C E B...
查看完整题目与答案
【单选题】When hearing British euphemisms, native English may
A.
make out their connotations quite easily.
B.
occasionally make nothing of some of them.
C.
feel delighted mostly and confused sometimes.
D.
figure out immediately whether they are suitable.
查看完整题目与答案
【简答题】Work itself is not a single, concept, we work in order to make______.
查看完整题目与答案
【单选题】The main idea of the news is that______.
A.
native English speakers numbered
B.
the number of people with English as a second language has overtaken the number who speak it as their native tongue
C.
non-native speakers' difficulties in learning English
D.
the so-called 'Blair Initiative'
查看完整题目与答案
相关题目：
【单选题】三个电阻值分别为10欧姆、20欧姆、50欧姆的电阻串联，串联后的总电阻值是（   ）？
A.
80欧姆
B.
50欧姆
C.
5.88欧姆
D.
0.17欧姆
查看完整题目与答案
【简答题】His few material possessions make it possible for him to move from place to place with ease.
查看完整题目与答案
【判断题】婚姻是家庭产生的重要前提,家庭又是缔结婚姻的必然结果。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在颜色调板中用鼠标右键单击键钮后，将会（）
A.
关闭调色板
B.
将所选对象的填充色设为无色
C.
关闭CorelDRAWX4
D.
将所选对象的轮廓线设为无色
查看完整题目与答案
【单选题】The news is that China is holding the biggest trade fair in the world.
A.
latest
B.
ultimate
C.
final
D.
last
查看完整题目与答案
【简答题】为评价家电行业售后服务的质量,随机抽取了 100 家庭。 服务质量的等级分别表示为: A. 好; B. 较好; C. 一般; D. 差; E. 较差。 调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C ...
查看完整题目与答案
【简答题】为评价家电行业售后服务的质量,随机抽取了由100个家庭构成的一个样本。服务质量的等级分别表示为:A.很好;B.较好;C.一般;D.较差;E.很差。调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C E B...
查看完整题目与答案
【单选题】When hearing British euphemisms, native English may
A.
make out their connotations quite easily.
B.
occasionally make nothing of some of them.
C.
feel delighted mostly and confused sometimes.
D.
figure out immediately whether they are suitable.
查看完整题目与答案
【简答题】Work itself is not a single, concept, we work in order to make______.
查看完整题目与答案
【单选题】The main idea of the news is that______.
A.
native English speakers numbered
B.
the number of people with English as a second language has overtaken the number who speak it as their native tongue
C.
non-native speakers' difficulties in learning English
D.
the so-called 'Blair Initiative'
查看完整题目与答案