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【单选题】
关于二氧化硅，下列叙述不正确的是 [ ]A.
水晶的成分是二氧化硅
B.
二氧化硅不溶于水，也不能跟反应生成酸
C.
二氧化硅是一种酸性氧化物，它不跟任何酸起反应
D.
二氧化硅和二氧化碳在物理性质上有很大差别
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反馈参考答案：
举一反三
【单选题】使用路由器把两个网络连接起来，组成的新网络是()。
A.
两个可以通信的独立网络
B.
一个可以相互通信的更大网络
C.
两个不可以相互通信的网络
D.
可以相互通信的更大网络，但广播域变大了
【多选题】Which of the following statements about void contract are correct?
A.
A void contract has no legal status.
B.
As if the contract never happened.
C.
No party has any contractual rights.
D.
A void contracr is void from the beginning.
【单选题】_____ the case, this contract has been considered void( 无效的 ) from this date.
A.
Because
B.
Since
C.
Due to
D.
Such being
【单选题】两个不同类型的计算机网络能够相互通信是因为____。
A.
它们使用了统一的网络协议
B.
它们使用了交换机互联
C.
它们使用了兼容的硬件设备
D.
它们使用了兼容的软件
【单选题】( ) the case, this contract has been considered void from this date.
A.
Due to
B.
Such being
C.
Because
D.
Since
【单选题】Which of the following is a void contract?
A.
contract entered into by a minor
B.
contract entered into by someone who is drunk
C.
contract entered into by someone who suffers a mental incapacity but who had not been adjudicated by a court to be incapable
D.
contract entered into by someone who has been adjudicated by a court to be incapacitated or insane
E.
all of the above are void
【判断题】If the quality of goods delivered by the seller is not in accordance with the contract, the buyer has the right to ask for compensation for the loss but cannot declare the contract void.
A.
正确
B.
错误
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