蜗杆传动齿轮侧间隙的检查，对于要求较高的用（）测量。
A.塞尺
B.百分表
C.压铅
D.游标卡尺
参考答案：B
标准米面中含量相对精白米面高的营养成分是（）。
A.硫胺素
B.核黄素
C.维生素A
D.烟酸
E.硒
So loudly _____ that ____ hear her clearly.
A．did she speak; could everyone
B．did she speak; everyone could
C．she spoke; could everyone
D．she spoke; everyone could
