铸造卡环的宽度与厚度比为()
A.1:2
B.1:4
C.1:6
D.1:8
E.1:1
参考答案:D
Complete the sentences with the following words. 连词组句。
1.they, English, French, Canada, know, speak, and, I, in
2. inside, little, a, do, see, flag, flag, Australia's, you
3. a, Australia, is, beach, this, in
4. country, east, China, what, is, of, the
5. where, China, is, live, we
新古典综合派是如何解释菲利普斯曲线的?