单选题
Listen to the conversation and circle the appropriate letter.
单选题
How many members are there in each survey group?
【正确答案】
B
【答案解析】Thomson： Tomorrow we will get on board. And we fifteen people will be divided into three groups.
sophia： Different groups will be in charge of different assignments, right?
Thomson： That's quite true. As for your group, please observe the appearance of each kind of whale and record it.
sophia： Copy that. I think, besides that, the behaviour of the whales in the sea water is also important information that we should not overlook.
Thomson： Yes, you are right. So it is necessary to carefully observe the whales. I hope the survey will be successful and benefit us a lot.
sophia： I'm sure it will.
单选题
Which of the following is not included in the items that the survey group should observe?