2009年7月22日，我国长江流域的许多城市都能观看罕见的天象“日_爱下问搜题

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问题选择题

2009年7月22日，我国长江流域的许多城市都能观看罕见的天象“日全食”。对日全食发生的条件判断正确的是

A．日食现象必定发生在农历初一

B．满月时会出现日食现象

C．日地月在一直线上，太阳居中

D．日食和月食也可能在同一天发生

答案

答案：A

题目分析：农历初一，日地月处于同一条直线上，此时月球位于地球和太阳之间，发生日食现象。正确答案选A。

点评：本题难度适中。要求学生熟练掌握日全食现象。

填空题

光线通过一块玻璃板时，其强度要损失原来的10%，把几块光线通过一块玻璃板时，其强度要损失原来的10%，把几块这样的玻璃板重叠起来，设光线原来的强度为a，则通过3块玻璃板后的强度变为（）

问答题

根据销售合同和已知资料指出一般原产地和保险单中错误的地方。
(1) 销售合同

SALES CONTRACT

Contract No.: NJTO90218
Date: FEB. 18, 2009
Signed at: Nanjing, China
The Seller: NANJING JINLING TEXTILE CO., LTD.
Address: UNIT A 18/F, JINLING TOWER, NO. 118JINLING ROAD, NANJING, CHINA
The Buyer: DEXICA SUPERMART S. A.
Address: BOULEVARD PACHECO 44, B-1000 BRUSSELS, BELGIUM
This Sales Contract is made by and between the Sellers and the Buyers, whereby the sellers agree to sell and buyers agree to buy the under-mentioned goods according to the terms and conditionsstipulated below:

Commodity and specifications	Quantity	Unit Price	Amount
GIRLS GARMENTS	10800PCS	CIF BRUSSELSEURS. 00/PC	EUR54000.00

10% more or less in quantity and amount are acceptable
Packing: IN CARTON Shipping Mark: N/M
Time of Shipment: Within 30 days after receipt of L/C
From NINGBO PORT CHINA to BRUSSELS, BELGIUM
Transshipment and Partial Shipment: Allowed
Insurance: to be effected by the Seller for 110% of full invoice value covering all risks up to port of destination and war risks included with claim payable at destination.
Terms of Payment: By 100% Irrevocable Letter of Credit in favor of the Sellers to be available by sight draft to be opened and to reach China before APRIL 1,2009 and to remain valid for negotiationin China until the 21days after the foresaid Time of Shipment. IJC must mention this contractnumber L/C advised by BANK OF CHINA JIANGSU BRANCH. ALL banking Charges outside Chinaare for account of the Buyer.
The Seller The Buyer
NANJING JINLING TEXTILE CO., LTD. DEXICA SUPERMART S.A.
钟山ALICE
(2)已知资料
装运信息：指定APL承运，装期2009.04.19；船名PRINCESS：航次V.018
装箱资料：合计108箱，装入1×20^#集装箱。
商业发票号：NJTO90218-09，签发日期2009年4月10日。
信用证号：CMKK9180205
(3)一般原产地证

缮制错误的地方有：