— How's the weather today? — [ ]
A. Hot and sunny.
B. Warm and rain.
C. Cold and snow.
答案:A
— _______ ?
— She is slim.
A.How do you like about the girl
B.What personality does the girl have
C.What kind of person is the girl
D.What’s the girl like
用来证明棉花和淀粉都是多糖的实验方法是[ ]
A.放入氧气中燃烧,检验燃烧产物都是CO2和H2O
B.放入银氨溶液中微热,都不发生银镜反应
C.加入浓硫酸后微热,都脱水而变黑
D.分别放入稀硫酸后煮沸几分钟,用NaOH溶液中和反应后的溶液,再加入新制的Cu(OH)2悬浊液共热,都生成红色沉淀