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【判断题】
心电图运动负荷试验时正常人为每增加1MET,收缩压增高5~12mmHg,而舒张压没有显著变化
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】The muscles of a fossilized animal can sometimes be reconstructed because______.
A.
they were preserved with the rest of the animal
B.
they were lodged inside the animal's skull
C.
they were hardened parts of the animal's body
D.
they were attached to the animal's skeleton
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal's appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely look like its living relatives.
查看完整题目与答案
【判断题】当集成运算放大器工作在非线性区时,输出电压不是高电平就是低电平。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The reconstruction of a fossilized animal's external appearance is considered necessary in order to______.
A.
satisfy popular curiosity
B.
answer scientific questions
C.
establish its activities
D.
determine its eating habits
查看完整题目与答案
【单选题】在集成运算放大器（以下简称集成运放，且均为理想型集成运放）的两个工作区中，当集成运放工作在_______时，输出为正向或负向饱和电压。
A.
线性区
B.
非线性区
C.
线性区 和线性区均可
D.
线性区 和线性区都不对
查看完整题目与答案
【单选题】张护士,为手外伤患者换药后,使用化学消毒剂浸泡血管钳的注意事项中,下列错误的是
A.
使用前用3%生理盐水冲净，以免药液刺激组织
B.
严格掌握药物的有效时间和浓度
C.
浸泡前要打开器械的轴节
D.
物品应全部浸没在消毒液中
E.
消毒液容器要盖严
查看完整题目与答案
【单选题】— When did Yao Ming _______ the Houston Rockets in the NBA? — I’m not sure. Was it in 2002?
A.
join
B.
join in
C.
take part in
查看完整题目与答案
【单选题】According to the text, the soft part of fossilized animals
A.
can always be accurately identified.
B.
have usually left some traces.
C.
can usually be reconstructed.
D.
have always vanished without any trace.
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal’s appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely looked like its living relatives.
查看完整题目与答案
【单选题】The fossilized remains of a type of camel ______ a dog have been found in the Bad Lands to South Dakota.
A.
no smaller than
B.
not smaller than
C.
no larger than
D.
not larger than
查看完整题目与答案
相关题目：
【单选题】The muscles of a fossilized animal can sometimes be reconstructed because______.
A.
they were preserved with the rest of the animal
B.
they were lodged inside the animal's skull
C.
they were hardened parts of the animal's body
D.
they were attached to the animal's skeleton
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal's appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely look like its living relatives.
查看完整题目与答案
【判断题】当集成运算放大器工作在非线性区时,输出电压不是高电平就是低电平。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The reconstruction of a fossilized animal's external appearance is considered necessary in order to______.
A.
satisfy popular curiosity
B.
answer scientific questions
C.
establish its activities
D.
determine its eating habits
查看完整题目与答案
【单选题】在集成运算放大器（以下简称集成运放，且均为理想型集成运放）的两个工作区中，当集成运放工作在_______时，输出为正向或负向饱和电压。
A.
线性区
B.
非线性区
C.
线性区 和线性区均可
D.
线性区 和线性区都不对
查看完整题目与答案
【单选题】张护士,为手外伤患者换药后,使用化学消毒剂浸泡血管钳的注意事项中,下列错误的是
A.
使用前用3%生理盐水冲净，以免药液刺激组织
B.
严格掌握药物的有效时间和浓度
C.
浸泡前要打开器械的轴节
D.
物品应全部浸没在消毒液中
E.
消毒液容器要盖严
查看完整题目与答案
【单选题】— When did Yao Ming _______ the Houston Rockets in the NBA? — I’m not sure. Was it in 2002?
A.
join
B.
join in
C.
take part in
查看完整题目与答案
【单选题】According to the text, the soft part of fossilized animals
A.
can always be accurately identified.
B.
have usually left some traces.
C.
can usually be reconstructed.
D.
have always vanished without any trace.
查看完整题目与答案
【单选题】According to the third paragraph, which of the following is true?
A.
A fossilized animal’s appearance is usually restored accurately.
B.
It is difficult to restore some fossilized animals because they had no external parts.
C.
The prehistoric elephants are hairless.
D.
An extinct animal does not definitely looked like its living relatives.
查看完整题目与答案
【单选题】The fossilized remains of a type of camel ______ a dog have been found in the Bad Lands to South Dakota.
A.
no smaller than
B.
not smaller than
C.
no larger than
D.
not larger than
查看完整题目与答案
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