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【判断题】
水准测量的一测站校核,一般用双面尺法或变换仪器高法。
A.
正确
B.
错误
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【判断题】按照国防动员的规模,可分为总动员和局部动员。
A.
正确
B.
错误
【简答题】It was so late that it was futile to try to catch the train. The word “futile” means “_____________________________________”.
【单选题】Futile
A.
富足的
B.
无效的
C.
沉积的
D.
不灵活的
【单选题】But Ato's decision to ban e-mails is likely to be futile, as the other messaging methods can be equally _____.
A.
distracted
B.
distract
C.
distraction
D.
distracting
【单选题】The attempts to prevent migration are futile and wrong. It is a violation of people’s right.
A.
going against
B.
division
C.
defending
D.
prevention
【单选题】有自吸能力的泵是
A.
离心泵与旋涡泵
B.
往复泵与旋涡泵
C.
齿轮泵与离心泵
D.
螺杆泵与离心泵
【单选题】作为输出端口时,下面哪一个端口需要外接上拉电阻才能有高电平输出呢
A.
P0
B.
P1
C.
P2
D.
P3
【单选题】The author's purpose in this passage is to______.
A.
define the economic terms used in discussion of employment
B.
criticize the decisions of past administrations during recession years
C.
call for the application of positive economic control policies in the year that lie ahead
D.
allay current fears about increasing unemployment
【单选题】有自吸能力的泵是
A.
离心泵与旋涡泵
B.
往复泵与 旋 转泵
C.
齿轮泵与离心泵
D.
旋 转泵与旋涡泵
【单选题】同时抛掷两个骰子,出现点数之和为13点是( )
A.
基本事件
B.
必然事件
C.
不可能事件
D.
复合事件
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