问题
单项选择题
纺织纤维可以分为化学纤维和( )两大类。
A．植物纤维
B．动物纤维
C．天然纤维
D．矿物纤维
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
纺织纤维可以分为化学纤维和( )两大类。
A．植物纤维
B．动物纤维
C．天然纤维
D．矿物纤维
参考答案：C
选用方框中所给动词的适当形式填空
小题1:Mr Smith asked his children __________at others. It’s rude.小题2:They ___________ up before they find the answers.小题3:This is impossible. You ______________ again.小题4:Some food can ___________ for many days in the fridge.小题5:His house _________ fire last night and everything in it was burnt up. |