增强眉毛的长度和弧度加宽眉间距可用来矫正()
A.正三角脸形
B.倒三角脸型
C.长脸型
D.圆脸形
参考答案:A
氨基酸与蛋白质的共性是( )。
A.胶体性质 B.沉淀反应 C.变性性质 D.两性性质
________ regular exercise is very important, it's never a good idea to exercise too close to bedtime.[ ]
A. If
B. As
C. Although
D. Unless