根据产品形状、用途及操作方式,聚氨酯泡沫塑料的生产工艺区分为块状发泡法,()和()。。
参考答案:喷涂法;浇铸法
用括号内所给单词的适当形式填空,使句意完整。
1. I have a brother and a sister. So my parents have three _______(child).
2. Can you help me with _______(swim)?
3. I can speak a little _______(China).
4. Jack's father and mother are _______(music).
5. He doesn't play _______(sport).
6. Please come and join _______(we).
7. She wants _______(play) volleyball with me.
8. He can play the drums, but I can't play _______(it).
9. Does your mother like_______(dance)?
10. The _______(one) day of the week is Sunday.
下列诗句中与“小荷才露尖尖角,早有蜻蜒立上头”出自同一作者的是( )。
A.不知细叶谁裁出,二月春风似剪刀B.接天莲叶无穷碧,映日荷花别样红C.绿荫不减来时路,添得黄鹂四五声D.扬花榆荚无才思,唯解漫天作雪飞