有关酶类说法错误的是（）。
A. 酶是生物体内具有生物催化活性的蛋白质
B. 生物体内一切化学反应几乎都是在酶的催化作用下进行的
C. 酶具有专一性强以及催化效率高等特点
D. 酶类药物具有助消化、消炎、凝血与抗凝血、抗氧化、抗肿瘤等多种作用
1. --- Excuse me, can you tell me where the nearest bus stop is?--- I’m sorry, I have no idea. I .
A. don’t know
B. am a stranger
C. am new here
D. just come
1. --- Could you tell me where the train station is?--- .
A. It’s over there.
B. It’s on the third floor.
C. No, I know little.
D. Yes, it’s there.
1. --- Excuse me, is this Mr. Brown’s office?--- I’m sorry, but Mr. Brown works here.
A. not now
B. no more
C. not still
D. no longer
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