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问题 选择题

_____ Blacks are going to the park. Why don’t we go for _____ walk, too?

A．A; an

B．An; /

C．The; a

D．/; a

答案

答案：C

题目分析：句意：布兰克夫妇打算去公园。为什么我们不去散散步呢？the加姓氏的复数，表示姓……的一家人（夫妇）。go for a walk，去散步。根据句意，故选C

单项选择题 B型题

肌皮神经支配（）

A.肱二头肌

B.拇内收肌

C.拇长伸肌

D.肱三头肌

E.肱桡肌
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单项选择题

A typical application of this (71) is ADSL. It is emerging as the technology for home-and small-office Internet connectivity. It provides either 1.5 Mb/s～8 Mb/s from the network to the user and 64 Kb/s～512 Kb/s in the reverse direction depending on the distance, 12 000 or 18 000 feet.. The different speed for each direction gives it the (72) label. ADSL is designed to take advantage of the fact that video-on demand, telecommuting, and Internet access traffic are inherently asymmetrical. The user (73) a brief message up to the network and receives a ton of data coming back, either a movie or a piece of data download. Under such a scenario, low-speed traffic to the network is just fine. ADSL delivers high (74) where you need it and only uses a single copper pair. Through multiplexing, it also reserves (75) of the bandwidth for POTS.

A．FTTH

B．HFC

C．FTTC

D．HDSL
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