弦的______经过圆心,并且平分弦所对的两条弧.

题型:填空题

问题:

弦的______经过圆心,并且平分弦所对的两条弧.

考点:垂直于直径的弦
题型:填空题

Joyce was born in a poor family. Next Friday would be her mother’s birthday. Joyce wanted to buy something for her mother, but she had no money. As an 8-year-old girl, she couldn’t do part-time jobs. What could she do to make enough money for her mother’s birthday present?

Suddenly she had an idea. Usually, she would go straight to school, but this morning, she didn’t. She walked along the streets, picking up cardboard(纸板), plastic(塑料)bottles and cans(易拉罐). When it was time for school, she hid them in the backyard and ran to school as quickly as possible.

Eight days later, she decided to sell all the things she had collected because the next day was her mother’s birthday. She had to sell them and buy a birthday present for her mother. In the shop, she bought a beautiful hair pin for her mother.

When her mother got the present, she said with tears in her eyes,“This is the best present I’ve ever received.”

小题1:How old was Joyce?

A. Seven.           B. Eight.        C. Nine.         

小题2:Why couldn’t Joyce buy a present for her mother at first?

A. Because she had no money.

B. Because she didn’t know what her mother liked.

C. Because she didn’t love her mother at all.

小题3:What was Joyce’s idea?

A. Doing part-time jobs.   

B. Collecting waste things and selling them.

C. Asking her best friend for help.

小题4:How long did Joyce collect the waste things?

A. A week.      B. A month.    C. More than a week.

小题5: How did Joyce’s mother feel when she got the present?

A. Very sad.      B. Very happy and moved.     C. Very surprised.

题型:填空题

女,24岁,有多个性伴侣,高热伴下腹痛1日。查体:体温38.9℃,下腹压痛、反跳痛,子宫颈充血、子宫颈口有脓性分泌物流出,子宫压痛,附件区压痛。B型超声提示:盆腔积液,子宫左侧包块,6.5cm×7.0cm。子宫颈分泌物培养见到淋病奈瑟菌。若选用抗生素,配伍方案较合理的是()

A.红霉素+多西环素

B.头孢曲松钠+多西环素

C.环丙沙星+庆大霉素

D.甲硝唑+克林霉素

E.红霉素+甲硝唑

题型:填空题

肾的"外华"是( )

A.面

B.发

C.爪

D.毛

E.面

题型:填空题

文学有宣传的作用,但宣传不能代替文学;文学有教育的作用,但教育不能代替文学。文学作品能产生潜移默化、塑造灵魂的效果,当然也会做出腐蚀心灵的坏事,但这二者都离不开读者的生活经历和他们所受的教育。经历、环境、教育等等都是读者身上、心上的积累,他们能抵抗作品的影响,也能帮助读者理解作品。读者对每一本书都是“各取所需”。只有日积月累、不断接触,才能在不知不觉间受到影响,发生变化。 这段文字意在说明:

A.文学的影响常是潜移默化的 

B.文学的教育作用常为人们所忽视 

C.文学作品的影响力受读者背景的影响 

D.文学作品的宣传作用并非天然产生的 

题型:填空题

压焊过程中的有害因素可分为焊接烟尘、有毒气体、电磁辐射、光热伤害、振动和噪声等几类。

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