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【单选题】
电感器的自感系数的单位是( )A.
Ω
B.
F
C.
H
D.
A
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反馈参考答案：
举一反三
【单选题】休克时下列哪项论述是错误的?( )
A.
中心静脉压70Pa,血压9.3/6.7kPa处理时应做补液试验
B.
中心静脉压30Pa,血压14.7/9.3kPa,应静点西地兰
C.
休克时应先输入晶体溶液
D.
多巴胺应用休克病人尿少时抗休克
E.
严重休克,酸中毒不能使用乳酸钠
【单选题】You own one share of a cumulative preferred stock which pays quarterly dividends. The firm has recently suffered some financial setbacks and has failed to pay the last two dividends. However, new fund...
A.
0
B.
1
C.
2
D.
3
【单选题】You are comparing two annuities which offer quarterly payments of $2,500 for five years and pay 0.75 percent interest per month. Annuity A will pay you on the first of each month while annuity B will ...
A.
These two annuities have equal present values but unequal futures values at the end of year five
B.
These two annuities have equal present values as of today and equal future values at the end of year five
C.
Annuity A has a smaller future value than annuity B
D.
Annuity B has a smaller present value than annuity A
【单选题】关于休克，下列哪项是错误的
A.
休克时，微循环的变化晚于血压下降
B.
休克的根本问题是组织细胞缺氧
C.
休克时有效循环血量急剧减少
D.
休克代偿期血压可略高于正常
E.
中心静脉压可低于5 cmH 2 0
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