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【简答题】
下面系统中,必须是实时操作系统的有(C )个。 (1)航空订票系统 (2)过程控制系统 (3)机器口语翻译系统 (4)计算机辅助系统 (5)办公自动化系统 (6)计算机激光照排系统 A. 1 B. 2 C. 3 D. 4
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【单选题】The food in the small restaurant smells good, but I don’t know how it ________.
A.
sounds
B.
tastes
C.
feels
D.
looks
【单选题】In order to ____ the debt, the couple has worked hard for years with little food and only a small room to live in and never a moment's rest.
A.
pay for
B.
pay back
C.
pay
D.
return back
【多选题】在下列Excel公式的输入格式中， ( )是正确的。
A.
=SUM fl,2,…,9,1 0)
B.
=SUM (El: E6)
C.
=SUM (Al: E7)
D.
=SUM (“18”, “25”,7)
【单选题】The large tiger _____ many small tigers is looking _____ food for dinner. [ ]
A.
and, at
B.
has, for
C.
with, for
D.
with, at
【判断题】Food in small eateries is not recommended for food there is inferior to that in big
A.
正确
B.
错误
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