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【单选题】
如果主程序用指令 “M98 P××L5” ,而子程序采用 M99 L2 返回,则子程序行的次数为 () 次。
A.
1
B.
2
C.
5
D.
3
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【单选题】求下列函数在指定点 处沿指定方向 的方向导数 知识点:方向导数的计算 (1) 为从点(1,2)到点(2,2+ )的方向 ( C )
A.
3
B.
2
C.
1+2
D.
3+2 (2)
【单选题】Under which of the following situations will a tariff imposed by a country fail to reduce imports by as much as expected? a. The current tariff rate is less than the prohibitive tariff rate. b. The fo...
A.
B.
C.
D.
D
【单选题】对于变磁阻式传感器,当衔铁移动时,气隙厚度δ发生改变,引起磁路中( )变化,从而导致电感线圈的电感值变化。
A.
电压
B.
磁阻
C.
电流
D.
磁场
【单选题】伴有糖尿病的水肿患者不宜选择的利尿药是()
A.
阿米洛利
B.
氢氯噻嗪
C.
螺内酯
D.
乙酰唑胺
E.
山梨醇
【单选题】The Chinese government gives top priority to the development of education, and ____________revitalizing the country by science and education.
A.
persist ed on
B.
insisted on
C.
persists in
D.
insisting in
【单选题】The country has _______ed to great international pressure to withdraw its troops.
A.
morality
B.
instinctively
C.
succumb
D.
politically
E.
appoint
F.
account for
G.
challenge
H.
rely on
I.
ensure
J.
seductive
【单选题】《节》卦之 “ 节 ” 的含义在于()
A.
节制
B.
节约
C.
礼节
D.
节操
【简答题】II. Fill in the blanks with one SINGLE word according to the Chinese translation in the brackets. Since its economic 1.______ (改革) and opening-up to the world, China ’ s education has gone through rap...
【单选题】LED色灯信号机发光盘前罩叠装___,可以满足曲线路段的显示需求。
A.
外透镜
B.
全表面玻璃
C.
非球面镜
D.
偏散镜
【单选题】The country ______ed its convention and unique culture.
A.
retain   vt.       保持;保留;
B.
affection   n.   喜爱,慈爱; 情感或感情;
C.
formally   adv.       正式地; 形式上;
D.
reflection   n.  反映;
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