Doing experiments can be interesting, and you may try the following experiments at home. Make sure that you’ll do them with an adult.

小题1:How many experiments are there in the pictures?

A．Six.

B．Five.

C．Three.

D．Two.小题2:The following are the instructions on how to do “Step 2” in these experiments. Which one is the right order?

a. Pour 3/4 of the water away. 

b. Put a balloon on the bottle.

c. Put the bottle in a bucket of hot water. The air rises into the balloon.

A．a, b, c

B．a, c, b

C．b, a, c

D．c, a, b小题3:What can you see in the bottle at last in Experiment A?

A．Some ice.

B．Some water.

C．Some ice and water.

D．A cloud and some water.小题4:What will happen to the balloon in “Step 3” in Experiment C?

A．It will be bigger.

B．It will be broken.

C．It won’t change.

D．It will be in the bottle.

根据《合伙企业法》规定，有限合伙人可以按照合伙协议的约定向合伙人以外的人转让其在有限合伙企业中的财产份额，但应当提前一定期限通知其他合伙人，该期限为( )。

A．10日

B．20日

C．30日

D．60日