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【简答题】
已知关于x的方程2a 2x-2 -9a x-1 +4=0有一根是2． （1）求实数a的值；（2）若0＜a＜1，求不等式2a 2x-2 -9a x-1 +4＜0的．
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【简答题】构件在交变应力作用下的失效形式为（ ）
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A.
天花病毒可能还有新的用途，只是现在还没有被发现
B.
保存天花病毒，有利于保护生物多样性
C.
假如实验室中的天花病毒被泄漏出去，将会造成严重的后果
D.
一旦天花重新流行，可以利用实验室保存的天花病毒快速研制疫苗
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【单选题】He is very good at carpentering, though ______.
A.
is very young
B.
very young
C.
hevery young
D.
he was very young
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【判断题】“云”是网络、互联网、专用网络等的一种比喻说法,过去在图中往往用云来表示电信网,后来也用来表示互联网和底层基础设施的抽象。
A.
正确
B.
错误
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【简答题】听句子，选出句子中所包含的信息。 (     )1. A. cat (     )2. A. next Monday (     )3. A. forty-five (     )4. A. He was very famous for his many inventions. (     )5. A. I started doing my home workafter mum got back ...
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【单选题】Protestors claimed it was wrong to fire Matthew Cusick merely because he was______.
A.
a very good acrobat
B.
not sick.
C.
unable to find other work
D.
HIV positive
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【简答题】根据短文内容及首字母提示，补全空格内单词，使短文完整通顺。 Rube is a very poor dog. One day, he is very h __1__ , so he goes to the market to look f__ 2 __ food. He runs to a meat shop. He sees a big bone (骨头) in the s__ 3 __. Th...
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【简答题】John moved into a new house. He was very happy. He had an old cat and a young cat. He liked them very much, He thought, “I must let my cat go in and out of my house when I'm not at home.” He had an id...
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【单选题】Why did Tom go to school on foot?
A.
Because he didn't catch the bus.
B.
Because he got up very early.
C.
Because he wanted to do exercises.
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【简答题】根据短文内容判断正(A)误(B)。 There was once a farmer who had a fine olive orchard (橄榄园). He was very hardworking, and the farm always grew well under his care. But he knew that his three sons didn't like the far...
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相关题目：
【简答题】构件在交变应力作用下的失效形式为（ ）
查看完整题目与答案
【单选题】天花是一种在全世界已经被消灭的传染病,目前世界上只有极少数的实验室仍保存着天花病毒。对于继续保存还是消灭这些天花病毒,存在争论。下列观点中支持消灭天花病毒的是
A.
天花病毒可能还有新的用途，只是现在还没有被发现
B.
保存天花病毒，有利于保护生物多样性
C.
假如实验室中的天花病毒被泄漏出去，将会造成严重的后果
D.
一旦天花重新流行，可以利用实验室保存的天花病毒快速研制疫苗
查看完整题目与答案
【单选题】He is very good at carpentering, though ______.
A.
is very young
B.
very young
C.
hevery young
D.
he was very young
查看完整题目与答案
【判断题】“云”是网络、互联网、专用网络等的一种比喻说法,过去在图中往往用云来表示电信网,后来也用来表示互联网和底层基础设施的抽象。
A.
正确
B.
错误
查看完整题目与答案
【简答题】听句子，选出句子中所包含的信息。 (     )1. A. cat (     )2. A. next Monday (     )3. A. forty-five (     )4. A. He was very famous for his many inventions. (     )5. A. I started doing my home workafter mum got back ...
查看完整题目与答案
【单选题】Protestors claimed it was wrong to fire Matthew Cusick merely because he was______.
A.
a very good acrobat
B.
not sick.
C.
unable to find other work
D.
HIV positive
查看完整题目与答案
【简答题】根据短文内容及首字母提示，补全空格内单词，使短文完整通顺。 Rube is a very poor dog. One day, he is very h __1__ , so he goes to the market to look f__ 2 __ food. He runs to a meat shop. He sees a big bone (骨头) in the s__ 3 __. Th...
查看完整题目与答案
【简答题】John moved into a new house. He was very happy. He had an old cat and a young cat. He liked them very much, He thought, “I must let my cat go in and out of my house when I'm not at home.” He had an id...
查看完整题目与答案
【单选题】Why did Tom go to school on foot?
A.
Because he didn't catch the bus.
B.
Because he got up very early.
C.
Because he wanted to do exercises.
查看完整题目与答案
【简答题】根据短文内容判断正(A)误(B)。 There was once a farmer who had a fine olive orchard (橄榄园). He was very hardworking, and the farm always grew well under his care. But he knew that his three sons didn't like the far...
查看完整题目与答案
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