两脚并拢直立,然后闭目,称为()。 A.Laségue征 B.Romberg征 C.

题型:单项选择题 A1/A2型题

问题:

两脚并拢直立,然后闭目,称为()。

A.Laségue征

B.Romberg征

C.kernig征

D.Hoffmann征

E.Brudzinski征

考点:神经电生理脑电图技术(主管技师)神经电生理脑电图技术(主管技师)综合练习神经电生理脑电图技术(主管技师)综合练习题库
题型:单项选择题 A1/A2型题
在匀强磁场中有一个原来静止的碳14原子核,它放射出的粒子与反冲核的径迹是两个相内切的圆,如图所示.那么碳14的衰变方程为(  )

A.+

B.+

C.+

D.+

题型:单项选择题 A1/A2型题

关于遥控制导,以下说法正确的是()

A.被遥控目标不能超出视线之外

B.遥控制导可以是有线的,也可以是无线的

C.遥控制导都是易于被干扰的

D.遥控制导的制导指令可以自己产生,也可以从弹体外输入

题型:单项选择题 A1/A2型题

采用连续级配的集料,混凝土的和易性和()较好。

A、稳定性

B、强度

C、均匀性

D、粘结性

题型:单项选择题 A1/A2型题

单锅筒纵置式往复炉排锅炉的代号是()。

A.DZW

B.DHW

C.SZW

D.SHW

题型:单项选择题 A1/A2型题

Based on the following information to answer questions from 39 to 40:

A mortgage-backed security has been divided into three classes or tranches as follows:

Tranche Ⅰ receives net interest and all the principal payments until it is completely paid off.

Tranche Ⅱ receives its share of net interest and starts receiving all the principal repayments after

Tranche Ⅰ has been completely paid off. Prior to that, it only receives interest payments.

Tranche Ⅲ receives monthly net interest and starts receiving all principal repayments after

Tranches Ⅰ and Ⅱ have been completely paid off. Prior to that, it only receives interest payments.

For an investor who is interested in long-term gains, in which tranche should she invest()

A. Tranche Ⅲ.

B. Tranche Ⅰ.

C. Tranche Ⅱ.

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