乐当家理财卡免收目前美国银行在14个州向外国客户收取的取现服务费，（）。 A.约为2

用方框中所给单词的适当形式填空。每词限用一次。

job       look       use       how       part      What do you know about a robot? Robots are machines that can be made to do certain things. They are in all shapes. For example, puppy (a young dog ) robots 1______ like real ones. They jump and bark (吠). Robots can do many 2______ people can't do. Robots can go where people can't go and bring back important information. In 1997, scientists sent a robot to Mars. It took pictures of rocks and soil, which helped scientists understand 3______ our own planet works. Scientists even used a robot to make a map of a volcano. So robots are very 4______ machines. They play a very important 5______ in our life. They help people understand the world we live in.

下图为我国商品粮基地分布图，读图回答下列问题。

（1）甲、乙两商品粮基地所属的农业地域类型为：甲是________________，乙是____________。简述乙地农业地域类型发展的条件？

（2）与丙相比，甲商品粮基地发展农业的区位优势有哪些？

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（3）简述珠江三角洲商品粮基地地位不断丧失的原因。

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关于急性鼻炎，下列概念中正确的是（）。

A.急性鼻炎即俗称“伤风”、“感冒”

B.急性鼻炎的主要病因是病毒感染

C.急性鼻炎应用抗生素是治疗常规

D.受凉、过度劳累及全身抵抗力差是急性鼻炎的常见诱因

E.急性鼻炎与“流行性感冒”不是同一种疾病

地面减速板控制活门的输入来自于（）

A.仅副翼驾驶盘

B.副翼驾驶盘和减速板手柄

C.仅减速板手柄

D.扇型盘

设f(x)是周期为2π的函数，f(x)在[-π，π)上的表达式为S(x)是f(x)的傅里叶级数的和函数，则S(0)=（）．