[单选题]调度自动化系统的数据库分为（）。
A.实时数据库和历史数据库
B.实时数据库和图形数据库
C.图形数据库和描述数据库
D.实时数据库和描述数据库

E1信道的数据速率是 (15) ，其中的每个话音信道的数据速率是 (16) 。

Dick was a clever boy, but his parents were poor, so he had to work in his spare time and during his holidays to pay for his education. (21) this ,he managed to get to the university, but it was (22) expensive to study there that during the holidays he found it necessary to get two jobs at the same time (23) enough money to pay for his studies.
(24) he managed to get a job in a butcher’s shop during the daytime, and another in a hospital at night .In the shop, he learnt to cut meat up quite nicely, so the butcher often left him to ", all the serving while he went into a room behind the shop to the accounts. In the hospital, (25) he was, of course, allowed (26) only the simplest job, like (27) to lift people and to carry them from one part of the hospital to another. Both at the butcher’s shop and at the hospital, Dick had to wear white clothes.
One evening at the hospital, Dick had to help to carry
A. to help
B. help
C. being helped
D. helping

"We want Singapore to have the X-factor, that buzz that you get in London, Paris, or New York." That is how Lee Hsien Loong, Singapore’s prime minister, (1) his government’s decision to (2) gambling in the country, (3) two large, Vegas-style casinos. Whether the casinos will indeed help to transform Singapore’s staid image remains to be seen. But the decision bas already (4) an uncharacteristic buzz among the country’s normally (5) citizens.
The government has contemplated, and rejected (6) casinos several times in the past. One reason was (7) Singapore’s economic growth was so rapid that casinos seemed like an unnecessary evil. Buddhism and Islam, two of the country’s main religions, (8) on gambling. The government itself has traditionally had strong, and often (9) , ideas about how its citizens should behave. Until recently, for example, it refused to (10) A. rely
B. focus
C. frown
D. fret