______为能量最经济的来源。
A.肉类
B.薯类
C.粮谷类
D.奶类
E.水
参考答案:B,C
用于肝纤维化评价的酶学指标主要有()
A.脯氨酰羟化酶
B.碱性磷酸酶
C.单胺氧化酶
D.5′-核苷酸酶
E.天冬氨酸氨基转移酶
—Did the radio say ________?
—Yes, from Hunan.
A.how the bad rice came
B.where the bad rice came from
C.how did the bad rice come
D.where did the bad rice come from