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【多选题】
以下说法正确的是( )。
A.
本馆的电子资源分为正式数据库、试用数据库、OA资源。
B.
OA 资源是指网络上可以免费使用的一些电子资源。
C.
我馆部分电子资源是需要使用专用的浏览器
D.
试用数据库是数据库商提供给有意向购买该数据库的用户的,但是为了保护数据库商的利益,一般都规定1-6个月的试用期限。
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皮皮学刷刷变学霸
举一反三
【单选题】“I usually go to work by bus.”“Why notby bike for a change?”()
A.
trying to go
B.
try going
C.
to try going
D.
try go
【判断题】薄壁圆筒受到扭转时,横截面上的切应力公式是 , 这个公式不仅在弹性范围内适用,在塑性范围内也是适用的。
A.
正确
B.
错误
【简答题】I usually go to work by car.
【单选题】—How do you go to work? —I usually go to work _____.
A.
by a car
B.
in a car
C.
on car
D.
by car
【单选题】I usually go to work on foot, but if the weather is bad, I will go by bus.我经常步行上班,如果天气不好,我会坐公交。 01010026
A.
I usually go to work by bus.
B.
I often go to work on foot.
C.
I never go to work on foot.
D.
I never go to work by bus.
【单选题】设a、b为有理数,下列命题正确的是(  )
A.
若a≠b,则a 2 ≠b 2
B.
若|a|=|b|,则a=-b
C.
若a>b,a 2 >b
D.
若a、b不全为零,则a 2 +b 2 >0
【单选题】— How do you go to work? — I usually go to work _____. [     ]
A.
by a car
B.
in a car
C.
on a car
D.
by cars
【单选题】How do you go to work? I usually go to work ____.
A.
by a car
B.
in a car
C.
on a car
D.
by cars
【简答题】I usually go to work ____ bike.
【单选题】—I'm doing a survey. Could you tell me ______? —Sure. I usually go to work at 7:00 am.
A.
why you go to work
B.
how you go to work
C.
when you go to work
D.
who you go to work with
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