Mr. Smith went to switzerland. He did not know French or German, and had to communicate through gestures. He attended a physical training course. The instructor made him bend his knees, swing his arms, stretch his neck and shake his head rapidly. He bad to lie on the ground and raise his right and left legs alternately. After a time his muscles grew hard and firm. He forgot the financial crisis and the importance of raising the level of production. He even began to notice individual trees and individual birds.
Finally he returned home. But unfortunately his improvement was only temporary. Soon he was a normal business man again, worried about his property, his profits, his savings, his advancement in a technological society, and things in general.
Mr. Smith went to see his doctor because he ______.
A.had little to eat
B.was seriously ill
C.had to sleep
D.didn' t feel well
第1题
● 关于ADSL 接入技术,下面的论述中不正确的是 (22) 。
(22 )A. ADSL 采用不对称 的传输技术
B. ADSL 采用了时分复用技术
C. ADSL 的下行速率可达 8Mb/s
D. ADSL 采用了频分复用技术
第2题
● 关于ADSL 接入技术,下面的论述中不正确的是 (22) 。
(22 )A. ADSL 采用不对称 的传输技术
B. ADSL 采用了时分复用技术
C. ADSL 的下行速率可达 8Mb/s
D. ADSL 采用了频分复用技术
第3题
A.ADSL采用不对称的传输技术
B.ADSL采用了时分复用技术
C.ADSL的下行速率可达8Mbps
D.ADSL采用了频分复用技术
第4题
A.ADSL采用不对称的传输技术
B.ADSL采用了时分复用技术
C.ADSL的下行速率可达8Mb/s
D.ADSL采用了频分复用技术
第6题
以下关于ADSL接入技术的论述中,不正确的是(67)。
A.ADSL上行速率可达1.5Mbps
B.上行信道比下行信道易受噪声影响
C.ADSL采用DMT调制技术
D.ADSL采用了时分复用技术
第7题
以下关于ADSL接入技术的论述中,不正确的是(37)。
A.ADSL上行速率可达1.5Mb/s
B.上行信道比下行信道易受噪声影响
C.ADSL采用DMT调制技术
D.ADSL采用了时分复用技术
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