下面词语中有四个错别字，请把它们找出来然后改正。 再接再励　离经叛道　莫明其妙

有一个样本含有20个数据

35 31 33 35 37 39 35 38 40 39 36 34 35 37 36 32 34 35 36 34

在本列频数分布表时，如果组距为2，那么应分成（    ）组，其中32.5～34.5这组的频数为（    ）。

参观沈阳世博园的同学对几株上面结满了巨大番茄的“番茄树”啧啧称奇，这些“番茄树”不是种植在土壤里，而是种植在富含营养液的水箱里。采用的这项生物技术是 [ ]

A．组织培养

B．无土栽培   

C．使果实、种子提早成熟

D．使细胞加速分裂和生长

互见中两艘机动船相遇致有构成碰撞危险，在下列哪种情况下，应认为是对遇局面？（）

Ⅰ、一船在船首左右各6度范围内见到他船的桅灯成一直线或接近一直线

Ⅱ、一船在正前方同时看到他船的两盏舷灯

Ⅲ、日间，在正前方能看见他船的前后桅杆成一直线或接近一直线

A.Ⅰ

B.Ⅱ、Ⅲ

C.Ⅰ、Ⅲ

D.Ⅰ、Ⅱ、Ⅲ

Try and see inside your mind a wide open blue sky and a wide green sea far away. Breathe in as you circle your hands high above your head, then bend back a little. Breathe out as you circle your arms back down to your sides..."

Following the yoga teacher's gentle instructions, Bai Yunuo,15, from the High School attached to Beijing Normal University tried to get each of her poses correct.

Bai's school offered 24 elective courses (选修课) for Senor 1 students this term and she chose two. It was her first yoga class.

"I'm happy that I can learn yoga at school. I love dancing but I had some injuries on my knees when I was a kid. So I decide to try something soft. Simply stretching into different poses makes me feel free and quiet. And the music is quite comforting. The class is relaxing after a whole day's work," Bai said.

Liu Zehao,15, found his interest was Junior Achievement (企业经营模拟). The course brought students into the real world of business. In their first class, Liu and his group members named their company "Vision". Liu was elected as CEO of the company.

"Here we learn to think like an adult. We have to make our company get more money. It's new and different from other courses," he said.

Liu and Bai take their elective courses twice a week with students from other classes who share the same interest. The students will get two credits (学分) from each course at the end of this term. They have to achieve eight credit points from electives to graduate from high school.

If you are interested in more about elective courses, please CLICK HERE to register for general elective courses.

小题1: What’s the main idea of the first paragraph?

A．Skills for imagination.

B．Learning tips.

C．Instruction for yoga students.

D．Breathing rules.小题2:What can be inferred from the passage?

A．Bai does not like dancing.

B．Yoga is softer than dancing.

C．Students study hard for credits.

D．The elective courses are easy.小题3: Which of the sentence is NOT true about Liu Zehao?

A．He was interested in Junior Achievement which brought him the real world of business.

B．He was elected as CEO of the company named "Vision".

C．He was an adult and he tried to make more money for his company.

D．He took their Junior Achievement twice a week.小题4:Where can you possibly find this passage?

A．A textbook

B．A newspaper

C．A magazine

D．The internet

简述流化床制粒的特点。