与离心泵的主要区别是防止输送的液体与电气部分接触,保证输送液体绝对不泄漏的泵是()。
A.离心式杂质泵
B.离心式冷凝水泵
C.混流泵
D.屏蔽泵
参考答案:D
阅读理解。
Mother's Day is an important day. It's a day children can show their mothers how much they love them. On Mother's Day, many children give flowers to their mothers. This makes them very happy.
Mrs. Green lived in a small street. She had a flower shop. People who lived near her store were poor. The children didn't have money to buy flowers. Mrs. Green helped them. The children worked one hour
for Mrs. Green. They cleaned the windows in the store. Then Mrs. Green gave them some flowers to take home for their mothers. The mothers had a nice Mother's Day. Both the mothers and children were happy.
1. On Mother's Day, children give ______to their mothers.
A. flowers
B. cards
C. foods
D. clothes
2. Mrs. Green lived in a ______street.
A. big
B. small
C. clean
D. dark
3. The children worked one ______for Mrs. Green.
A. hour
B. week
C. month
D. year
4. The children _____ in the store.
A. made tea
B. washed the car
C. watered flowers
D. cleaned the windows
家庭暴力受害人及其法定代理人、()可以向加害人或者受害人所在单位、居民委员会、村民委员会、妇女联合会等单位投诉、反映或者求助。有关单位接到家庭暴力投诉、反映或者求助后,应当给予帮助、处理。
A.近亲属
B.朋友
C.邻居