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【单选题】
下列关于光波的叙述,正确的是
A.
只具有波动性
B.
只具有粒子性
C.
具有波粒二象性
D.
其能量大小于波长成正比
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【单选题】Laughter happens at certain times in a conversation. People laugh more when they speak than when they listen. Pay attention to conversations around you. You will discover that the speaker in a convers...
A.
Laughter happens at certain times in a conversation.
B.
People laugh more when they speak than when they listen.
C.
Pay attention to conversations around you.
D.
You will discover that the speaker in a conversation laughs more often.
E.
Also, laughter almost always comes at the end of a sentence or a thought.
F.
For example, a person might say, “He went to the wrong store! Ha! Ha! Ha!”
G.
The person does not say, “He went—Ha! Ha! Ha!—to the wrong store!”
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【简答题】用煤烹饪食物,始于( )之际。
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【单选题】Successful scientists have often been people with wide interests. Their originality may have derived from their diverse knowledge. Originality often consists in linking up ideas whose connection was n...
A.
the wood
B.
technical details
C.
the trees
D.
fixed laws
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【单选题】What did the boy often do at school?
A.
He was often late for school.
B.
He often fell asleep in class.
C.
He often stayed after school.
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【简答题】Mark often attempts to escape ________ whenever he breaks traffic regulations. A) having been fined B) to be fined C) to have been fined D) being fined
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【判断题】“改变行车闭塞法”的调度命令需要转交给司机
A.
正确
B.
错误
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【单选题】What she does is often contrary ______ what she says.
A.
upon
B.
in
C.
to
D.
for
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【判断题】真菌性疾病对人和动物的危害均较大，同时对实验研究也带来比较大的影响。实验动物感染真菌后，不仅影响科学实验的准确性，而且容易污染环境，威胁动物群体以及饲养人员和实验人员的身体健康。
A.
正确
B.
错误
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【单选题】听力原文： The rattlesnake, often considered the deadliest of all North American snakes, has often been the subject of research and discussion among naturalists. This snake earns its name from the presence...
A.
The rattlesnake is a erous snake.
B.
The rattlesnake's rattles are rings of hardened skin.
C.
The rattlesnake is the only species of snake that has rattles.
D.
The rattlesnake is one of many poisonous snakes that give warning before they strike.
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【单选题】Our teachers are really ______. They often work in their office far into the night.
A.
open-minded
B.
hard-working
C.
self-confident
D.
warm-hearted
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相关题目：
【单选题】Laughter happens at certain times in a conversation. People laugh more when they speak than when they listen. Pay attention to conversations around you. You will discover that the speaker in a convers...
A.
Laughter happens at certain times in a conversation.
B.
People laugh more when they speak than when they listen.
C.
Pay attention to conversations around you.
D.
You will discover that the speaker in a conversation laughs more often.
E.
Also, laughter almost always comes at the end of a sentence or a thought.
F.
For example, a person might say, “He went to the wrong store! Ha! Ha! Ha!”
G.
The person does not say, “He went—Ha! Ha! Ha!—to the wrong store!”
查看完整题目与答案
【简答题】用煤烹饪食物,始于( )之际。
查看完整题目与答案
【单选题】Successful scientists have often been people with wide interests. Their originality may have derived from their diverse knowledge. Originality often consists in linking up ideas whose connection was n...
A.
the wood
B.
technical details
C.
the trees
D.
fixed laws
查看完整题目与答案
【单选题】What did the boy often do at school?
A.
He was often late for school.
B.
He often fell asleep in class.
C.
He often stayed after school.
查看完整题目与答案
【简答题】Mark often attempts to escape ________ whenever he breaks traffic regulations. A) having been fined B) to be fined C) to have been fined D) being fined
查看完整题目与答案
【判断题】“改变行车闭塞法”的调度命令需要转交给司机
A.
正确
B.
错误
查看完整题目与答案
【单选题】What she does is often contrary ______ what she says.
A.
upon
B.
in
C.
to
D.
for
查看完整题目与答案
【判断题】真菌性疾病对人和动物的危害均较大，同时对实验研究也带来比较大的影响。实验动物感染真菌后，不仅影响科学实验的准确性，而且容易污染环境，威胁动物群体以及饲养人员和实验人员的身体健康。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文： The rattlesnake, often considered the deadliest of all North American snakes, has often been the subject of research and discussion among naturalists. This snake earns its name from the presence...
A.
The rattlesnake is a erous snake.
B.
The rattlesnake's rattles are rings of hardened skin.
C.
The rattlesnake is the only species of snake that has rattles.
D.
The rattlesnake is one of many poisonous snakes that give warning before they strike.
查看完整题目与答案
【单选题】Our teachers are really ______. They often work in their office far into the night.
A.
open-minded
B.
hard-working
C.
self-confident
D.
warm-hearted
查看完整题目与答案