细嚼馒头，口腔内感觉有甜味，这是由于[ ]
A．牙齿咀嚼的缘故
B．舌搅拌的缘故
C．口腔分泌消化酶的缘故
D．与以上三条都有关
答案：D
选择相搭配的语句。
( )1. I like tomatoes.
( )2. I like potatoes.
( )3. I like carrots.
( )4. I like cucumbers.
( )5. I don't like onions.
A. Tender and green.
B. Smelly and white.
C. Juicy and red.
D. Yummy and orange.
E. Tasty and brown.
多用炒黄法炮制的药物种类是（）
A.根类
B.茎类
C.种子类
D.花类
E.叶类
