选择实验用具及药品

用具：试管、铁架台（带铁夹）、单孔橡皮塞、玻璃导管、橡皮管、捣碎的鸡蛋壳。

阅读短文，然后用括号中所给词的适当形式填空。

The old newspaper seller

He is sitting at the newspaper stand near the bus stop.

And he’s  ____(smile).

The Sun is ____ (shine). It’s very hot . But he’s smiling.

A bus stops, and the people rush out . They are hurrying ____ (work). They don’t have much time to smile. They take their papers ____ (quick) , and put down some money . But he’s a patient man , and he’s still smiling.

A crowd of people , all very busy , with tired ____ (face) , and just one smile. Is there just one smile in this city? Or will you make it two? Let ____ (we) make a million smiles!

在一定时期,银行可以提供的贷款资金总量是一定的,在贷款利率市场化的背景下,银行可以通过调整贷款利率调节金融市场的资金需求。如果纵轴OP表示贷款利率,横轴OQ表示信贷需求,D代表企业对银行贷款资金的需求变化曲线,如果不考虑其他因素的影响,在企业的投资需求长期不振的情况下,下列情况最有可能发生的是（  ）