本题目来源于试卷: SL Topic B1.1 Carbohydrates and lipids，类别为 IB生物学
[单选题]
1. Carbon is the basis of bf2l:w23nw9mn zzgg++p h ( u gwjiq/;fiological polymers becav:g61e 8szt4 ;jn0/p fy; jttgeiyki4use:
I It can form chains by bonding to other carbon atoms.
II It is found in carbohydrates.
III It can form four covalent bonds.
IV It can form branched and ring structures.
A. I only
B. I and II only
C. I, III and IV only
D. I and III only
参考答案: C
本题详细解析:
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