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【单选题】
副交感神经兴奋可引起A.
瞳孔扩大
B.
糖原分解
C.
胃肠运动增强
D.
心率加速
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举一反三
【单选题】The clause 'the socialization of the contemporary child in the U.S. is a two-way communication'' (Para. ) means______.
A.
both parents play a chief role in the contemporary child-rearing process
B.
there are two current methods of socializing children
C.
socialization is a process shared by parents and their children
D.
raising children is both pleasurable and troublesome
【简答题】The two major shifts the U.S. population is undergoing are changes in geographic distribution and in______.
【单选题】读程序一 ,如果将0行X0触点中的上升沿指令去掉,变成程序二,对二者功能的正确描述是()
A.
程序一:每按下 X0 一次,M0 输出 1 个脉冲,宽度为 1 个扫描周期
B.
程序一:每按下 X0 三次,M0 输出 1 个脉冲,宽度为 1 个扫描周期
C.
程序二:每按下 X0 一次,M0 输出 1 个脉冲,宽度为 1 个扫描周期
D.
程序二:每按下 X0 三次,M0输出 1个脉冲,宽度为 1个扫描周期
【单选题】高分子溶液的性质不包括下列( )
A.
高分子溶液黏度大
B.
高分子溶液时热力学稳定体系
C.
高分子溶液的行为与理性溶液有很大偏离
D.
高分子溶液的性质随浓度变化不大
【单选题】18In the U.S., two thirds of students pay for college through _____ and will have to pay them back with interest after graduation.
A.
faculty
B.
incidents
C.
loans
D.
assignments
【单选题】Love in England should be similar to that in the U.S. because the two countries share a lot in common.
A.
Y
B.
N
C.
NG
【单选题】(By the 1980s) more than (two-fifth of) U.S. crop production was exported, (making) U.S. agriculture heavily (dependent) upon international markets.
A.
By the 1980s
B.
two-fifth of
C.
making
D.
dependent
【单选题】For two years, the U.S. economy has soared ever higher, reaching strata last ____ in the 1960s.
A.
ventured
B.
promoted
C.
explored
D.
cultivated
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