函数f（x）=2cos2x+sin2x的最小值是（）．

已知直角三角形的三边长为6，8，x，则以x为边长的正方形的面积为______．

设{a_n}是等比数列，S_n是{a_n}的前n项和，对任意正整数n，有a_n+2a_n+1+a_n+2=0，又a₁=2，则

S₁₀₁= [ ]

A．200

B．2

C．﹣2

D．0

教案是教练员按（）和课时编写的具体训练实施方案，是教练员教学的基本依据。

A、训练目标

B、训练课题

C、训练条件

D、训练要求

The medicine won’t cure her-it________stops the pain.[ ]

A．hardly  

B．merely

C．likely  

D．barely

Which intervention has the highest priority when providing skin care to a bedridden client ？（）

A．Changing the bed linens frequently for an incontinent client.

B．Keeping the skin clean and dry without using harsh soaps.

C．Gently massaging the skin around the pressure areas.

D．Rubbing moisturizing lotion over the pressure areas.