At school, we are taught _______ knowledge _____how to behave well.
A：neither, or
B：either, or
C：not only, but also
D：not, but
正方形四边中点的连线围成的四边形（最准确的说法）一定是（ ）
党和政府历来十分重视社会主义民主法制建设，我国第一部社会主义类型的宪法制定于（ ）
⑴____What are these?
⑵____Is there an apple on the table?
⑶____How many bikes are there ?
⑷____Can you drive a car?
⑸____What's the weather like in spring?
A: There're five.
B: It's warm.
C: They're pears.
D: Yes, there is.
E: No, I can't.
下列对果胶酶作用的叙述中，不正确的是（ ）
