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【判断题】
决定砂轮特性的要素包括磨料、粒度、结合剂、硬度、组织及尺寸形状。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】听力原文：What time will the bank open? (A) It opens at 8 A.M. (B) The door is open. (C) The bank has a large clock. (11)
A.
B.
【简答题】黄鼠狼尾毛
【简答题】黄鼠狼尾_______
【单选题】—_____ the door, please. —Come in. The door _____ . [ ]
A.
Be open:opens
B.
Be open；is opening
C.
Open；is open
D.
Open；Opens
【简答题】未鞣制的黄鼠狼尾
【简答题】A．Please open the door. B．Don't open the door. C．She is not sure whether to open the door. D．She doesn't agree.
【单选题】---- _______the door, please. ----Come in please. The door _______.
A.
Be open; opens
B.
Be open; is opening
C.
Open; opens
D.
Open; is open
【简答题】rubber [ ˈrʌbə ] n. 橡胶;橡皮 [ pl.] 胶鞋 a. 橡胶的
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