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【判断题】
与油画、水粉画的技法相比,水彩技法最突出的特点就是 "留空"的方法。一些浅亮色、白色部分,需在画深一些的色彩时"留空"出来。水彩颜料的透明特性决定了这一作画技法,浅色不能覆盖深色,不象水粉和油画那样可以覆盖,依靠淡色和白粉提亮。在欣赏水彩作品时留意一下,会发现几乎每一幅都运用了"留空"的技法。A.
正确
B.
错误
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【简答题】Learning to use a computer is getting easier all the time because ________. A) programs are becoming less complicated B) programs are designed to be convenient to users C) programming is becoming easi...
【单选题】药品生产、经营企业和医疗机构发现或者获知新的、严重的药品不良反应应当报告，时间是
A.
10日之内
B.
15日之内
C.
20日之内
D.
25日之内
E.
30日之内
【单选题】He has been interested in computer since his childhood, so he specialized______ computer science when he was in college.
A.
on
B.
at
C.
for
D.
in
【单选题】______, he finds the work interesting.
A.
Though he is computer expert
B.
A computer expert he is
C.
As computer expert
D.
Computer expert as he is
【单选题】does he have to type the report on a computer， he has to get the computer to translate it into sounds.
A.
Not only；but also
B.
Either；or
C.
Both；and
D.
Not；but
【简答题】A．He is a computer supplier. B．He is a computer designer. C．He is a computer repairman. D．He is a computer technician.
【单选题】药品生产、经营企业和医疗机构发现或者获知新的、严重的药品不良反应应当（）
A.
立即报告
B.
在5日内报告
C.
在10日内报告
D.
在15日内报告
E.
在30日内报告
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