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【简答题】
Bees communicate by dancing: For example, they do a kind of dance to tell other bees about the _________ of flowers. 2. It was said that Nancy was going to marry a rich Englishman, but she ________ it. 3. We need a huge __________ of money to build a new high school for the children in this area. 4. Since you broke the window, you should pay for the ___________. 5. People who fish and sail sometimes ________ to have seen strange animals in the sea. 6. He looks young, but _________ he is much the elder of the two. 7. The guard walked through the train __________ everyone’s ticket. 8. The New smart _________ could be very expensive to build. However, they would be less likely to be damaged during earthquakes.
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【单选题】若喷油器的调压弹簧过软,会使得
A.
喷油时刻滞后
B.
喷油量过小
C.
喷油初始压力过低
D.
喷油初始压力过 高
【单选题】若喷油器的调压弹簧过软,会使得()
A.
喷油时刻滞后
B.
喷油量过小
C.
喷油初始压力过低
D.
喷油初始压力过低
【单选题】若喷油器的调压弹簧过软,会使得()
A.
喷油量过小
B.
喷油时刻滞后
C.
喷油初始压力过低
D.
喷油初始压力过高
【单选题】若喷油器的调压弹簧过软,会使得答案
A.
喷油时刻滞后
B.
喷油量过小
C.
喷油初始压力过低
D.
喷油初始压力过低
【单选题】三相相控整流带电阻负载工作时,共阴极组中处于通态的是______的相电压,共阳极组中处于通态的是______的相电压.
A.
电压最高,电压最高
B.
电压最高,电压最低
C.
电压最低,电压最高
D.
电压最低,电压最低
【单选题】描述大肠杆菌生长速度时常用的时间单位是( )
A.
分钟
B.
小时
C.
D.
E.
以上都不是
【单选题】某导线的fx=-0.08m,fy=+0.06m,导线全长∑D=506.704m,该导线的全长相对闭和差为( )。
A.
1/1354
B.
1/5000
C.
1/9576
D.
1/4000
【单选题】描述大肠杆菌生长速度时常用的时间单位是( )
A.
分钟
B.
小时
C.
D.
【单选题】若喷油器的调压弹簧过软,会使得
A.
喷油量过多
B.
喷油时刻滞后
C.
喷油初始压力过低
D.
喷油初始压力过高
【单选题】SolidWorks 的操作非常灵活,运用一些技巧更能够大大提高您的效率。要想旋转模型,除了使用 “ 旋转视图 ” 之外,更快捷的方法是 _______
A.
Ctrl + 左键
B.
滚动鼠标滚轮
C.
Ctrl + 右键
D.
移动鼠标时按下滚轮不松
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