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【单选题】
可以用来作为厨用陶瓷刀的材料是:
A.
Fe2O3
B.
Al2O3
C.
WC
D.
ZrO2
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【简答题】The rapid growth of microcomputer systems since the late 1970s has now resulted in BASIC being very likely the most widely used computer language in the world.
【单选题】在select语句中where子句表示()
A.
指定查询条件
B.
逻辑运算
C.
再哪里
D.
模糊查询
【判断题】根据发动机的压缩比选用汽油时,压缩比大,应选用高牌号的汽油。 ( )
A.
正确
B.
错误
【单选题】The plastic bags were first produced in the 1970s and grew increasingly popular since the 1980s.
A.
Y
B.
N
C.
NG
【简答题】The U. S. population of kids (grow) __________ since the 1970s, and will remain at high levels through the 1990s.
【简答题】Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer intece(BCI) technology could help people with disabilities send commands to machines. Rec...
【单选题】Since the late 1970s, in the face of a severe loss of market share in dozens of industries, manufacturers in the United States have been trying to improve productivity and therefore enhance their inte...
A.
summarizing a thesis
B.
recommending a different approach
C.
comparing points of view
D.
making a series of predictions
【单选题】4 天工开物是什么时期科技著作
A.
清代
B.
明代
C.
宋代
D.
唐代
【单选题】Since 1970s, there is a tremendous growth in ____________.
A.
manufacturing industry
B.
foreign trade
C.
high-tech industry
D.
the service sector
【单选题】在 SELECT 语句中 WHERE 子句表示
A.
逻辑运算
B.
模糊查询
C.
查询指定的列
D.
指定查询条件
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