由表中数据可得回归直线方程 $\widehat{y}=\widehat{b}x+\widehat{a}$ ，其中 $\widehat{b}=-2$ 。预测当气温为－4℃时，用电量的千瓦时数约为（     ）

根据短文内容，选择正确答案，在答题卷上将对应的字母编号涂黑。

                                                                                            (B)

    A man is walking through(穿过) a forest. He has some caps(帽子) in his hands. In the forest, there are a lot of monkeys. The day is hot, so the man has a rest under a tree. He puts one cap on his head and lies down to sleep(躺下睡觉). When he wakes up(醒来), he can't find his caps. "Where are my caps?" he cries and looks up. He sees some monkeys in the trees. Each(每个)has a cap on its head. "Give me back my caps!" shouts the man to the monkeys. But they don't understand(理解) him. They only jump, laugh(笑) and dance. "How can I get back my caps'?" he thinks. Then he has an idea. He takes off his cap and throws it on the ground. The little animals do the same thin9.

Happily the man picks up all the caps and goes on his way.

2015年的政府工作报告指出，各级政府要自觉接受同级人民代表大会及其常委会的监督，接受人民政协的民主监督，认真听取人大代表、民主党派、工商联、无党派人士和各人民团体的意见。由此可知（  ）

①人民政协与人民代表大会对政府享有相同效力的监督权

②民主党派是参政党，享有法定的政治参与地位

③***对民主党派的领导是政治领导

④人民政协在社会主义民主政治建设中发挥着重要作用

如图所示，地球在公转轨道上沿A→B→C→D绕着太阳公转。