“珍珠盘”是形容哪一味中药的性状( )
A.山药B.银柴胡C.黄芩D.天麻E.当归
参考答案:B
解析: 珍珠盘俗指银柴胡药材顶端众多银白色疣状突起的茎基及芽。
It can be inferred from the passage that children normally learn simple counting ______. a. soon after they learn to talk b. by looking at the clock c. when they begin to be mathematically mature d. after they reach second grade in school
现场矫正钢结构件上的薄板变形,大都采用()的方法。
A、手锤锤击
B、局部加热而使其冷却收缩
C、多轴钢板矫正机
D、机械矫正