可以使用任何几何体正确象作为发射源的粒子系统是()。
A、Spray(喷射)
B、Snow(雪)
C、Parray(粒子阵列)
D、Blizzard(云)
参考答案:A
用所给单词的适当形式完成句子。
1. Put it under _(run) water.
2. She was also told _(not do) PE for six weeks.
3. My mother often burns _(she) while cooking.
4. --Have you been to Hong Kong? --Yes,I _(go) there last year.
5. Making a good _(decide) is important.
用高温水或蒸汽冲洗冷油器应有哪些安全措施?