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【单选题】
正确的煮沸消毒方法是A.
橡胶类物品在冷水中放入
B.
中途加入其他物品，需等再次后计时
C.
在水中加入亚硝酸钠可提高杀菌效果
D.
煮沸 30 分钟即可杀灭多数细菌芽胞
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举一反三
【简答题】Buy a burger,get free fries.
【单选题】When did the couple get the nickname Burger King?
A.
When they agreed to marry each other at Burger King.
B.
When they became great lovers of Burger King.
C.
When they took a photo at a local Burger King.
D.
When they were in fifth grade and helped to set up a yo-yo event.
【单选题】When did the couple get the nickname Burger King?
A.
When they were in fifth grade and helped to set up a yo-yo event.
B.
When they agreed to marry each other at Burger King.
C.
When they became great lovers of Burger King.
D.
When they took a photo at a local Burger King.
【多选题】画相交平面剖切的剖视图时应注意：( )（请同学们按照选项顺序填写答案对应字母)
A.
剖切面的相交处不能画分界线。
B.
剖视图标注可以省略。
C.
位于剖切平面后的结构仍按原来的位置进行投射。
D.
由于被倾斜剖切平面剖开的结构及有关部分要旋转到与选定的投影面平行后再进行投射,所以两个视图之间就不完全符合“长对正”、“高平齐”的投影规律。
E.
两剖切平面的交线要与机件的回转轴线重合。
【简答题】下面语句用于将C003的课程名改为“数据库”,学分改为4 ______ 课程 ____ 课程名='数据库', 学分=4 ______ 课程号='C003'
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