钻机在车盘上必须捆绑结实，（）超高或超长。A、允许 B、有时可以 C、不准 D、随时

某课外化学学习兴趣小组发现向盛有澄清石灰水的试管中，不断吹入CO₂先生成白色沉淀，再不断吹入CO₂沉淀溶解，将变澄清的溶液用酒精灯加热又出现白色沉淀．沉淀溶解生成物是什么？具有什么化学性质？请你提出假设并设计实验加以验证．（老师提供给学生的信息为：生活中蒸馒头所用的小苏打（NaHCO₃）是由纯碱、水和CO₂反应制得的）．可供使用的试剂和仪器为：CaCl₂溶液、NaHCO₃溶液、澄清石灰水、稀HCl、酒精灯、试管、烧杯、导管、玻璃棒．

下列选项中，不属于SQL数据定义功能的是（ ）。

A．SELECT

B．CREATE

C．ALTER

D．DROP

An old farmer lived on a farm with his young grandson. Each morning Grandpa was up early to read his Bhagavat Geeta. His grandson wanted to be just like him and tried to imitate him in every way he could.

One day the grandson asked, "Grandpa! I try to read the Bhagavat Geeta just like you but I don't understand it, What good does reading the Bhagavat Geeta do?"

The Grandfather quietly turned from putting coal in the stove and replied, "Take this coal basket down to the river and bring me back a basket of water."

The boy did as he was told, but all the water leaked out (漏出) before he got back to the house. The grandfather laughed and said, "You'll have to move a little faster next time," and sent him back to the river with the basket to try again. This time the boy ran faster, but again the same took place. He told his grandfather that it was impossible to carry water with a basket.

The old man said, " You're just not trying hard enough,"  So the boy again dipped the basket into the river and ran hard, but when he reached his grandfather the basket was again empty. he said, "See Grandpa, it's useless!"

"So you think it is useless?" The old man said, "Look at the basket."

The boy looked at the basket and for the first time realized that the basket was different. It had been transformed from a dirty old coal basket into a clean one inside and outside.

"You might not understand or remember everything, but when you read it, you will be changed, inside and out. That is the work of Krishna in our lives."

小题1:We can learn from Paragraph 1 that the grandson_________.

A．was fond of reading

B．liked his grandpa very much

C．got up early to carry water every day

D．helped his grandpa on the farm小题2:According to the grandson,___________.

A．he enjoyed reading the Bhagavat Geeta

B．learning the Bhagavat Geeta was easy

C．he was not good at remembering anything

D．reading the Bhagavat Geeta was meaningless小题3:We can learn that by getting water with a basket, the grandson__________.

A．washed the dirt off the basket

B．kept some water for the future

C．was punished for what he had said

D．became stronger and cleverer小题4:The grandfather gave his grandson a lesson by_________.

A．telling him an interesting story

B．having a heated discussion with him

C．asking him to carry water with a basket

D．performing an experiment for him小题5:What would the grandson like to do in the future?

A．To help his grandpa carry water

B．To hold water with a bucket

C．To read the Bhagavat Geeta.

D．To remember everything in his life.

发行人推销证券的方法有两种：自销和包销。一般情况下，公开发行以包销为主。（）

按照通知的内容和作用来分，通知主要有（）

A、指示性通知

B、转文性通知

C、事务性通知

D、任免通知