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【单选题】
若 CorelD raw X5 中的作品需印刷,则应选择哪种颜色模式( )
A.
RGB
B.
CMYK
C.
LAB
D.
HSB
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【单选题】关于细菌的生殖下列叙述正确的是 [     ]
A.
在任何环境中,细菌都能快速繁殖
B.
细菌是靠一分为二的分裂方式进行生殖的
C.
所有细菌都能形成芽孢,用以渡过不良环境
D.
细菌繁殖能力特别强,半小时就分裂一次
【单选题】"...Plenty of people of all generations still view a BA as a prerequisite of success in life. But Dew says older people “get stuck“ on the fact that he has no intention of getting a bachelor's degree....
A.
a BA
B.
To have a new idea with merit
C.
To be a pioneer
D.
To see the new chance
【单选题】题5图所示三相电路中,电源线电压为380 V,三相负载均由“60W,220V”的白炽 灯泡组成,其中:U相有 3 盏,V相有 2 盏,W 相有 1 盏。若电路出现断路故障, 断路点如图中记号“×”所示,则各相所接灯泡亮度的变化情况分别为( )。
A.
各相灯泡均正常发光
B.
各相灯泡均变暗
C.
U相灯泡亮度不变,V相灯泡变暗,W相灯泡变亮
D.
U相灯泡亮度不变,V相灯泡变亮,W相灯泡变暗
【单选题】"...Plenty of people of all generations still view a BA as a prerequisite of success in life. But Dew says older people “get stuck“ on the fact that he has no intention of getting a bachelor's degree....
A.
A BA
B.
To have a new idea with merit
C.
To be a pioneer
D.
To see the new chance
【多选题】属于新中国成立以后我国治河防洪取得得工作成就有
A.
开辟蓄滞洪区
B.
疏浚整治河道及开辟排洪入海出路
C.
大力开展水土保持工作
D.
逐步建立和完善防洪非工程措施
E.
大量修建水库工程
F.
加修加固堤防
G.
建立并完善了水资源综合利用的法律基础
【单选题】An experienced driver has to get familiar with the urban transportation in most cities in China and avoid getting in traffic jams.
A.
stuck
B.
struck
C.
stocked
D.
stacked
【单选题】As they _____ in the snowstorm in the deep mountains, they had great _____ in getting in touch with the outside world. [     ]
A.
lost; trouble
B.
were caught; difficulty
C.
were stuck; difficulties
D.
were trapped; troubles
【简答题】新中国成立以后我国将主要工艺份那六大类?
【多选题】新中国成立以后我国畜产品批发市场的特征有( )
A.
交易规模小
B.
服务功能单一
C.
法律法规不健全
D.
交易量大
【简答题】题5.2.5图所示的是三相四线制电路,电源线电压U1=380V。三个电阻性负载接成星形,其电阻为R1=11Ω,R2=R3=22Ω。(1)试求负载相电压、相电流及中性线电流,并作出它们的相量图;(2)如无中性线,求负载相电压及中性点电压;(3)如无中性线,当L,相短路时求各相电压和电流,并作出它们的相量图;(4)如无中性线,当L3相断路时求另外两相的电压和电流;(5)在(3)、(4)中如有中性线,则...
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