A:鉴定蛋白质和还原性糖的实验都需要加热
B:低温和秋水仙素诱导多倍体形成的原理不同
C:在观察洋葱鳞片叶内表皮细胞的DNA和RNA分布时,盐酸的作用是对该细胞进行解离
D:观察植物细胞质壁分离现象可用50%的蔗糖溶液
—Can you do any kung fu?
—____
—The passage is too hard to understand.
—Yes, ________ it's very short and there are no few words in it.