什么是浮动利率？

把弹簧振子从平衡位置拉开4cm后放手让它振动，振动的频率是2Hz，则弹簧振子的振幅为______cm，1s内振子通过的路程为______cm．

汉代雕塑的代表作是霍去病墓前的“（）”石雕。

应用尚无文献报道的抗血清或自己制备的抗血清进行免疫酶组织细胞化学染色时，必须设置的对照是（）。

A.交叉实验

B.替代实验

C.吸收实验

D.置换实验

E.阳性对照

十二经脉的功能活动反映于体表的部位是（）。

A.浮络

B.孙络

C.经筋

D.别络

E.皮部

Soon, more of the information we receive via the Internet could come (155) in digital wrappers.
Wrappers are made up, (156) software code that’s targeted to do specific things with the data (157) within them, such as helping to define queries for search engines. They also keep (158) from (159) access to that code.

A．insiders

B．money

C．outsiders

D．warehouse