Mr. Smith stood up in defence of the 16-

Nowadays advertisements are everywhere. I think advertisements have both good and bad effects    小题1:   young students.

On one hand, advertisements give us information about things     小题2:   buy. They make    小题3:  easier for us to choose the best product. Also, some advertisements are beautifully designed and pleasant to look at.    小题4:    on the other hand, they can make trouble for us. First, most advertisements look attractive and they persuade us to buy things we don’t need at all. This is especially bad for young people. They are not making money yet. So they have to ask for money   小题5:   their parents. Sometimes they buy lots of junk food    小题6:  the advertisements look delicious. This is not healthy for them. What’s more, some advertisements don’t tell the truth. Many people find   小题7:  cheated after using certain products.

In short, advertisements have pros and cons﹙赞成和反对点﹚.   小题8: young students, we should learn to deal with.

船用雷达是建立在无线电波在任何两种媒质的边界面上必然产生反射，以及（）等基本传播特性的基础上的。

A.无线电波的传播是沿地表进行的

B.无线电波的传播是沿直线进行的

C.无线电波的传播速度是常数

D.B+C

下列是爱迪生电池分别在充电和放电时发生的反应：Fe+ NiO₂+2H₂OFe(OH)₂+Ni(OH)₂，消耗0.54g H₂O时，电解0.01molCuSO₄和0.01molNaCl混合溶液100mL，两极产生气体标况下总体积是 [ ]

A、0.168L

B、0.224L

C、0.336L

D、0.672L

女性，30岁。产后1周，乳汁不足，两乳不胀，兼见面色苍白，气短乏力，唇爪无华，舌质淡，脉细。若用针灸通乳，除局部选穴外，还要取

A．足太阴脾经穴

B．足阳明胃经穴

C．足厥阴肝经穴

D．手阳明大肠经穴

E．手少阳三焦经穴

已定义c为字符型变量，则下列语句中正确的是（ ）。

A．c='97';

B．c="97";

C．c=97;

D．c="a";