发到银行汇票的查询应当在（）进行查复，有特殊原因不能查复的，查复时间最迟不得超过（）

下列描述语言属于化学变化的是（　　）

A．铁制品长期露置在空气中容易生锈

B．氧气常用来支持燃烧，如炼钢、气焊等

C．加压、降温，氧气变成淡蓝色液体

D．细铁丝在氧气中燃烧生成黑色固体

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小题1:According to Warranty Limitations, a product can be under warranty if __________.

A. shipped from a Canadian factory                   B. rented for home use

C. repaired by the user himself                          D. used in the U.S.A.

小题2:According to Owner’s Responsibilities, an owner has to pay for __________.

A．the loss of the sales receipt

B．a servicer’s overtime work

C．the product installation

D．a mechanic’s transportation小题3:Which of the following is true according to the warranty?

A．Consequential damages are excluded across America.

B．A product damaged in a natural disaster is covered by the warranty.

C．A faulty cabinet due to rust can be replaced free in the second year.

D．Free repair is available for a product used improperly in the first year.

太阳能建筑日照间距的决定，以冬至日日照时数不少于()h为宜。

A．3

B．4

C．5

D．6

与外源性抗原递呈密切相关的分子是（）

A.MHCⅠ类分子

B.MHCⅡ类分子

C.FcγR

D.mlg

E.C3bR

葡萄糖是青霉素合成的最好碳源。