《银魂》中坂田银时佩戴的木刀叫（）

正常情况下，肾单位交替工作，约有（）的肾单位处于相对静止状态。

A.1／2

B.1／3

C.1／4

D.3／4

把下面的句子补充完整。    

1．我来到                 ，看见                     ，知道                                   。 

2．原来丑小鸭变成了                                                                   。 

3．列宁让蜜蜂                                                                 。 

4．小花狗                                                                 。  

5．                                                快活地游来游去。

一般将下列哪项称为有临床意义的病变（）

A.冠状动脉狭窄大于50%（直径）

B.冠状动脉狭窄大于45%（直径）

C.冠状动脉狭窄大于40%（直径）

D.面积减少超过70%

E.面积减少超过60%

下列药物中，常采用砂炒烫去毛的是（）

A.石韦

B.骨碎补

C.狗脊

D.马钱子

E.枇杷叶

The distinction between modified convexity and effective convexity is that:（）

A. effective convexity accounts for changes in cash flows due to embedded options, while modified convexity does not.

B. modified convexity becomes less accurate as the change in yield increases, but effective convexity corrects for this.

C. modified convexity is only meaningful for positive changes in yield, while effective convexity can be used for either positive or negative changes in yield.