一囊型斗,其内部花纹中囊头朝向左,囊口朝向右,该斗型纹又称为()。
A、左囊斗
B、右囊斗
C、绞形斗
D、杂型斗
参考答案:A
Fill in the blanks. 给“a”,“an”,“some”找到合适的家。
1. —What would you like for Christmas ?
—I'd like milk and apple.
2. —Would you like peas ?
—No, thanks. I'd like onions.
3. Sixty minutes make hour.
4. This is basketball.
5. Here is strawberry.
一般阴极保护适用的介质有()。
A.土壤
B.海水
C.碱溶液
D.有机酸溶液
E.盐酸