搜题

【单选题】

Although recent years have seen substantial reductions in noxious pollutants from individual motor vehicles, the number of such vehicles（）.

A、have been steadily increasing

B、has been steadily increased

C、has been steadily increasing

D、have been steadily increased

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更多“Although recent years have seen substantial reductions in noxious pollutants from individual motor vehicles, the number of such vehicles（）.”相关的问题

第1题

[单选题] Although recent years have seen（）reductions in noxious pollutants from individual motor vehicles, the number of such vehicles has been steadily increasing.

A、substantial B、substance C、submit D、subjective

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第2题

[单选题] Although the Wars of the Roses were fought intermittently for（）years,ordinary people were little affected and went about their business as usual.

A、20 B、30 C、40 D、50

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第3题

[单选题] The heavy-duty lubricating oil with chemical has been widely introduced in recent years（）

A、additives B、behavior C、coolant D、desiccant

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第4题

[单选题] Although Wales has been united with England for more than 400 years,the Welsh has kept alive（）.

A、their own language B、their own literature C、their own tradition D、All of the above

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第5题

[单选题] They have learned about（）in recent years.

A、several hundreds English words B、hundreds of English words C、hundred of English words D、several hundred English words

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第6题

[] In more recent years, （） heat exchangers have frequently been employed for jacket water and oil cooling.

A、A.shell and tube type B、B.plate type C、C.coil type D、D.conical disc type

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第7题

[单选题] 有职工表：职工（职工编码，姓名，性别，出生年月），假设要查询职工的年龄，则该查询的计算字段″年龄″应定义为（）

A、年龄：Now（）-Year（″出生年月″） B、年龄：Year（Now（））-Year（[出生年月]） C、年龄：Year（Now（））-Year（#出生年月#） D、年龄：Year（Now（））-Year（′出生年月′）

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第8题

[单选题] 能完全正确表示“year是闰年”的逻辑表达式是（）。

A、 year mod 4=0 B、 year mod 400=0 C、（year mod 400=0）or（year mod 4=0）and（year mod 100<>0） D、（year mod 400=0）and（year mod 4=0）or（year mod 100<>0）

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第9题

[] This year's sales in many companies were lower than （）.

A、A.lat year's B、B.which of last year's C、C.last year D、D.in last year

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