皮皮学，免费搜题
登录
搜题
【单选题】
桑蚕丝中,丝素含量占其总量的多少?A.
70%~80%
B.
60%~70%
C.
50%~60%
D.
80%~90%
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】In the 21 st century, all nations must take their ________of responsibility for the global safety.
A.
blame
B.
charge
C.
share
D.
notice
【简答题】句型转换 1. He asked,“Why are you late today,Jimmy?” 2. Lucy said,'I'm going to the beach for vacation. ' 3. Mother told me,'I'm not mad at you anymore. ' 4. Xiao Li asked me,'Can I copy your homework?' 5...
【简答题】In the 21st century, all nations must take their ________of responsibility for the global safety. A．blame B．charge C．notice D．share
【单选题】Mary told me _____she had ordered two bottles of beer.
A.
A if
B.
. whether
C.
which
D.
. that
【单选题】The boxes must be strong enough to withstand transport __________ very bad roads.
A.
along
B.
for
C.
in
D.
over
【单选题】Mary told me ___ she had ordered two bottles of beer.
A.
if
B.
whether
C.
which
D.
that
相关题目：
参考解析：
知识点：
题目纠错 0
发布
