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【单选题】
在宽带接入技术中，非对称数字用户线环路的英文简称是()。A.
XDSL
B.
HDSL
C.
ADSL
D.
VDSL
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反馈参考答案：
举一反三
【简答题】蛋白质变性后，其性质有哪些变化?
【判断题】The name of goods in the contract must be that of the goods which the seller is able to supply and the buyer is in need of( )
A.
正确
B.
错误
【简答题】蛋白质变性后，其性质有哪些变化?
【简答题】蛋白质变性后，其性质有哪些变化
【判断题】According to Chinese law, the contract must be concluded in written form.
A.
正确
B.
错误
【简答题】The terms of the contract must be clear, definite, certain and complete.
【单选题】The contract must be renewed one week ( ) their expiration.
A.
on
B.
against
C.
for
D.
before
【判断题】A bonding contract must be in the form required by the law between parties with the capacity to contract.
A.
正确
B.
错误
【简答题】蛋白质变性后，其性质有哪些变化?
【单选题】The contract must be renewed one week __________ their expiration.
A.
on
B.
against
C.
the moment of
D.
before
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