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从性能分,路由器可分为线速路由器和 【 】

A. 模块化路由器 B.高端路由器 C.非线速路由器 D.核心路由器

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To which of the following statements would McWhorter most likely agree?
[A] Logical thinking is not necessarily related to the way we talk.
[B] Black English can be more expressive than standard English.
[C] Non-standard varieties of human language are just as entertaining.
[D] Of all the varieties, standard English can best convey complex ideas.

l4.建筑钢材随着含碳量的增加,其()

A. 塑性、韧性及可焊性降低,强度和硬度提高
B. 塑性、韧性及可焊性提高,强度和硬度提高
C. 塑性、韧性及可焊性降低,强度和硬度降低
D. 塑性、韧性及可焊性提高,强度和硬度降低

An appropriate title for the text is most likely to be__________.
[A]Fors and Againsts of DNA testing
[B] DNA testing and It’s problems
[C]DNA testing outside the lab
[D] lies behind DNA testing

质点沿x轴运动,运动方程为x=2t2+6(SI),则质点的加速度大小为()

A. 2m/s2 B.4m/s2 C.6m/s2 D.8m/s2

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