皮皮学，免费搜题
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【单选题】
有限责任公司董事会的职权是？
A.
对公司发行债券作出决议
B.
决定公司经营计划和投资方案
C.
审议批准公司的年度财务预算方案、决算方案
D.
审议批准公司的年度财务预算方案、决算方案
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【单选题】当系统各元件输入输出特性是线性特性,系统的状态和性能可以用线性微分(或差分)方程来描述时,则称这种系统为( )。
A.
线性系统
B.
离散系统
C.
连续系统
D.
非线性控制系统
查看完整题目与答案
【单选题】According to a widely accepted theory, the universe began ____ a “Big Bang” that threw matter in all directions.
A.
with
B.
from
C.
in
D.
by
查看完整题目与答案
【单选题】What is the 'big bang' theory of cetacean predation? ______.
A.
Sixty-eight species of odontocetes use sound to locate their victims
B.
Toothed whales use sound as weapons
C.
Whales and humans have vestigial structures
D.
Whale teeth, once sharp, have become somewhat short and uneven
查看完整题目与答案
【多选题】植物细胞培养容器中的气体成分主要指( )。
A.
氧气
B.
乙烯
C.
氢气
D.
二氧化碳
查看完整题目与答案
【单选题】According to ______ widely accepted theory, ___ universe began with __ 'Big Bang' that threw matter in all directions. [     ]
A.
a; the; a
B.
a; the; /
C.
the; an; a
D.
the; /; a
查看完整题目与答案
【单选题】. One scientific theory of the origin of the universe is the much misunderstood big bang theory
A.
. Physicists now believe they can construct what happened in the universe during the first three minutes of its beginning
B.
Many scientists believe that, during microwave experiments, we can actually “hear” echoes of the big bang.
C.
The popular notion is that the big bang was a huge explosion in space, but this is far too simple a description
D.
. The big bang theory, if accepted, convinces us that the universe was not always as it is now
查看完整题目与答案
【判断题】在连续系统中，以微分方程来描述系统运动状态，并用拉氏变换来求解微分方程；而离散系统则以差分方程描述系统的运动状态，用Z变换求解差分方程。
A.
正确
B.
错误
查看完整题目与答案
【判断题】连续系统以微分方程方程来描述,离散系统用差分方程方程描述。
A.
正确
B.
错误
查看完整题目与答案
【单选题】运动员的竞技能力大致包括( )。
A.
技能、体能和心智能
B.
体能、心智能、身体素质
C.
C． 技术、身体素质、文化素质
查看完整题目与答案
【单选题】Like the theory of evolution, the big-bang model of the universe's formation has undergone modification and ______, but it has______ all serious challenges.
A.
alteration...confirmed
B.
refinement...resisted
C.
transformation...ignored
D.
evaluation...acknowledged
E.
refutation...misdirected
查看完整题目与答案
相关题目：
【单选题】当系统各元件输入输出特性是线性特性,系统的状态和性能可以用线性微分(或差分)方程来描述时,则称这种系统为( )。
A.
线性系统
B.
离散系统
C.
连续系统
D.
非线性控制系统
查看完整题目与答案
【单选题】According to a widely accepted theory, the universe began ____ a “Big Bang” that threw matter in all directions.
A.
with
B.
from
C.
in
D.
by
查看完整题目与答案
【单选题】What is the 'big bang' theory of cetacean predation? ______.
A.
Sixty-eight species of odontocetes use sound to locate their victims
B.
Toothed whales use sound as weapons
C.
Whales and humans have vestigial structures
D.
Whale teeth, once sharp, have become somewhat short and uneven
查看完整题目与答案
【多选题】植物细胞培养容器中的气体成分主要指( )。
A.
氧气
B.
乙烯
C.
氢气
D.
二氧化碳
查看完整题目与答案
【单选题】According to ______ widely accepted theory, ___ universe began with __ 'Big Bang' that threw matter in all directions. [     ]
A.
a; the; a
B.
a; the; /
C.
the; an; a
D.
the; /; a
查看完整题目与答案
【单选题】. One scientific theory of the origin of the universe is the much misunderstood big bang theory
A.
. Physicists now believe they can construct what happened in the universe during the first three minutes of its beginning
B.
Many scientists believe that, during microwave experiments, we can actually “hear” echoes of the big bang.
C.
The popular notion is that the big bang was a huge explosion in space, but this is far too simple a description
D.
. The big bang theory, if accepted, convinces us that the universe was not always as it is now
查看完整题目与答案
【判断题】在连续系统中，以微分方程来描述系统运动状态，并用拉氏变换来求解微分方程；而离散系统则以差分方程描述系统的运动状态，用Z变换求解差分方程。
A.
正确
B.
错误
查看完整题目与答案
【判断题】连续系统以微分方程方程来描述,离散系统用差分方程方程描述。
A.
正确
B.
错误
查看完整题目与答案
【单选题】运动员的竞技能力大致包括( )。
A.
技能、体能和心智能
B.
体能、心智能、身体素质
C.
C． 技术、身体素质、文化素质
查看完整题目与答案
【单选题】Like the theory of evolution, the big-bang model of the universe's formation has undergone modification and ______, but it has______ all serious challenges.
A.
alteration...confirmed
B.
refinement...resisted
C.
transformation...ignored
D.
evaluation...acknowledged
E.
refutation...misdirected
查看完整题目与答案