______ are chiefly derived from petroleum.

admin2004-12-30  21

问题 ______ are chiefly derived from petroleum.

选项 A、Plastics today
B、There are plastics today
C、Because today plastics today
D、Due to plastics today

答案A

解析
转载请注明原文地址:https://kaotiyun.com/show/psyO777K
0

最新回复(0)