制备含低共熔物的散剂叙述错误的是A.薄荷脑和樟脑的散剂混合易形成低共熔物B.可采用先形成低共熔
制备含低共熔物的散剂叙述错误的是
A.薄荷脑和樟脑的散剂混合易形成低共熔物
B.可采用先形成低共熔物,再与其他固体粉混合
C.可弃去低共熔物
D.可分别以固体粉末稀释低共熔组分,再混匀
E.低共熔物是一些低分子化合物且比例适宜时出现润湿或液化的现象
制备含低共熔物的散剂叙述错误的是
A.薄荷脑和樟脑的散剂混合易形成低共熔物
B.可采用先形成低共熔物,再与其他固体粉混合
C.可弃去低共熔物
D.可分别以固体粉末稀释低共熔组分,再混匀
E.低共熔物是一些低分子化合物且比例适宜时出现润湿或液化的现象
第1题
—Must we finish the work today?—No, you ______.
A.mustn't
B.can't
C.needn't
第2题
--Must we finish the homework today? --No, you
A.mustn't
B.needn't
C.shouldn't
第3题
"Must we finish the work in an hour?""No, you ()."
A.don't
B.needn't
C.mustn't
D.can't
第4题
“Must we finish the work in an hour?” “No,you().”
A.don't
B.needn't
C.mustn't
D.can't
第5题
— Must we finish the homework today? — No, you ______.
A.mustn't
B.needn't
C.shouldn't
第6题
“Must we finish the work in an hour”“N0,you().”
A.don’t
B.needn’t
C.mustn’t
D.can’t
第7题
A: Must we finish the work right now?
B: No, you _______. You can do it tomorrow.
A.needn't
B.shouldn't
C.mustn't
D.can't
第8题
--Must we finish the homework today? --No, you
A.mustn't
B.needn't
C.shouldn't
第9题
"Must we finish the work in an hour?"
"No, you ()."
A. don't
B. needn't
C. mustn't
D. can't
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!