A：使用托盘天平前，要先取下支撑托盘的垫圈，再调节天平平衡
B：称取氯化钠前，要在天平两端的托盘上分别放质量相同的纸片
C：移动游码使其右侧对齐3g的刻度线，然后将氯化钠加到天平的右盘上
D：取用规格为50mL的量筒量取47mL水，快到所需刻度时改用胶头滴管定容
Father's Day is on the ____(three) Sunday in June.
猪____ 滤____
猎____ 虑____
哺____ 判____
捕____ 叛____
“帚国初年，地中海已成了帝国的内湖，地中海各地之间的交通畅通无阻，海上航路、内陆河道、陆上通道和古老，商道都成了内外贸易的动脉，商旅往来，络绎不绝。”材料中的“帝国”是（ ）
The house price is going up _______.
根据短文内容，完成下列各小题。
It's four thirty in the afternoon. There are many students on the playground. Jim and his friends are playing basketball. Li Lei and other boys are playing football. Miss Gao is watching the games. She is looking after the clothes, too. Where are the girls? They are over there. Some are running, others are jumping. The twins are on duty today. They are in the classroom. Lucy is cleaning the window, Lily is sweeping the floor. They are working hard. They are tired(疲倦的) but happy.
