体内氨储存及运输的主要形式是
A．谷氨酸B．酪氨酸C．谷氨酰胺D．谷胱甘肽E．天冬酰胺
参考答案：C
唾液腺接受放疗剂量大于（）后唾液分泌功能将不能恢复。
A.30Gy
B.40Gy
C.50Gy
D.60Gy
E.70Gy
We have school uniforms in school.[ ]
A. wear
B. to wear
C. wears
D. wearing
