将电阻为R的电阻丝接入电源电压为2V的电路中，电流为0.5A，若将电阻丝R对折接

“我们这里四季分明，夏季炎热，经常下雨，冬季寒冷，很干燥。”的气候特征是下列哪个地区的学生介绍的。[ ]

A．撒哈拉地区

B．北京　　　

C．西伯利亚地区

D．亚马孙平原

质量都是m的物体在水平面上运动，则在下图所示的运动图象中表明物体做匀速直线运动的图象的是（　　）

A．

B．

C．

D．

补全对话。

A: What can I do for you. Sir?

B: 1_____

A: For yourself? These are a~for young people. 2_____

B: I like the blue one.

A: 3_____

B: Thank you 4_____

A: One hundred yuan.

B: Oh, it costs too much.

A: 5_____ It is cheaper. It is only fifty yuan,.

B: OK. I'll take it. Thank you.

I want to buy a hat for myself.

How much is it?

What color do you want?

What about this one?

What size do you want?

OK. Here you are.

It's beautiful. isn't it?

四大

新中国第一家全国性的股份制银行是( )。

A．交通银行
B．招商银行
C．恒丰银行
D．中信银行