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【单选题】
数控车床的轴向和径向分别定义为:()
A.
X和Y
B.
X和Z
C.
Z和X
D.
Y和X
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参考答案:
举一反三
【单选题】(I) Prices of longer - maturity bonds respond more dramatically to changes in interest rates. (II) Prices and returns for long - term bonds are less volatile than those for short - term bonds.
A.
(I) is true, (II) false.
B.
(I) is false, (II) true.
C.
Both are true.
D.
Both are false.
【单选题】制动过程中,当减速度的变化率小于( )米每平方秒时,乘客不会产生明显的不适感
A.
0.6
B.
0.75
C.
1.0
D.
2.0
【单选题】制动过程中,当减速度的变化率小于( )米每平方秒时,乘客的不舒适性可以接受
A.
0.6
B.
0.75
C.
1.0
D.
2.0
【单选题】(I) Prices and returns for short-term bonds are less volatile than those for long-term bonds. (II) The prices of longer-maturity bonds respond more dramatically to changes in interest rates.
A.
I is true, II false.
B.
I is false, II true.
C.
Both are true.
D.
Both are false.
【单选题】患者,男,20岁,2小时前打篮球时出现左下腹剧烈疼痛,向尿道口和大腿内侧放射,伴恶心呕吐。尿常规示红细胞+++,检查首选是
A.
IVP
B.
逆行造影
C.
膀胱镜
D.
B超
E.
KUB
【单选题】Bonds that are purchased with the intent of selling them in the near future to take advantage of short-term price changes are classified as:
A.
Securities available for sale.
B.
Trading securities.
C.
Consolidating securities.
D.
Held-to-maturity securities.
【单选题】Long-term bonds are __________________ than short-term bonds, and long-term bonds often have a __________________ yield than short-term bonds.
A.
less risky; lower
B.
more risky; lower
C.
less risky; higher
D.
more risky; higher
【单选题】Since yield curves are usually upward sloping, the ________ indicates that, on average, people tend to prefer holding short-term bonds to long-term bonds.
A.
market segmentation theory
B.
expectations theory
C.
liquidity premium theory
D.
both A and B of the above
E.
both A and C of the above
【单选题】患者,男,20岁,2小时前打篮球时出现左下腹剧烈疼痛,向尿道口和大腿内侧放射,伴恶心呕吐。尿常规示红细胞+++,根据病情首先应予以治疗的措施是
A.
止吐
B.
解痉、止痛
C.
急诊手术
D.
控制感染
E.
大量饮水,保持尿量
【判断题】电磁搅拌力的计算,简单情况下,电磁力=电流×磁场强度
A.
正确
B.
错误
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