木质模型制作的黏合剂应根据制作的模型材料产地来合理选用。
参考答案:错
It’s generous _______ them to donate money to UNICEF. They think it important _______ them to help poor children go to school.
A.to; for
B.for; of
C.of; to
D.of; for
防止滑行的办法有那些?