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问题 选择题

人体内胃液的正常的pH在0． 9～1． 5之间，胃酸过多患者的pH低于正常值．下列物质中可作为治疗胃酸过多症的药物是（　　）

A．Al（OH）3

B．CaO

C．NaOH

D．NaCl

答案

A、氢氧化铝能与胃液中的盐酸反应，可以用于治疗胃酸过多，故A正确；

B、氧化钙具有碱性，但是腐蚀性强，故B错误；

C、氢氧化钠具有极强的腐蚀性，故C错误；

D、氯化钠不具有碱性，故D错误；

故选A．

单项选择题

阅读以下信用证，做选择填空。
(1)信用证内容
27: SEQUENCE OF TOTAL 1/1
40A: FORM OF DOCUMENTARY CREDIT IRREVOCABLE
20: DOCUMENTARY CREDIT NUMBER CRED1785669
31C: DATE OF ISSUE 090906
40E: APPLICABLE RULES UCP LATEST VERSION
31D: DATE AND PLACE OF EXPIRY 091102 U.S.A.
50: APPLICANT SILKROAD TEXTILES CO., LTD.
554E 8TH STREET A682
LOS ANGELES
U.S.A.
59: BENEFICIARY MEIYIJIA FABRIC CO., LTD.
150 RENMING ROAD
DALIAN 116002 CHINA
32B: CURRENCY CODE, AMOUNT: USD 76670
39A: PRECENTAGE CREDIT AMOUNT TOLERANCE 10/10
41A: AVAIIABLE WITH. BY. CITIU$33
42P: DEFERRED PAYMENT DETAILS AT 60 DAYS AFTER SIGHT C/O OUR COUNTERS
43P: PARTIAL SHIPMENTSNOT ALLOWED
43T: TRANSSHIPMENT NOT ALLOWED
44E: PORT OF LOADING/AIRPORT OF DEPARTURE DALIAN PORT, CHINA
44F: PORT OF DISCHARCE/AIRPORT OF DESTINATION LONG BEACH PORT, U.S.A.
44C: LATEST DATE OF SHIPMENT091017
45A: DESCRIPTION OF GOODS AND/OR SERVICES
+TRADE TERMS: CIF LONG BEACH PORT, U.S.A. ORIGIN: CHINA
+82000M of 100% POLYESTER WOVEN DYED FABRIC
AT USD 0.85 PER M
WIDTH: 150CM1＞180CM2
46A: DOCUMENTS REQUIRED
+SIGNED COMMERCIAL INVOICE THREE FOLD
+FULL SET OF CLEAN ON BOARD OCEAN BILL OF LADING MADE OUT TO THE ORDER AND BLANK ENDORSED, NOTIFY: APPLICANT(FULL ADDRESS)MARKEDFREIGHT PREPAID
+SIGNED DETAILED PACKING LIST
+CERTIFICATE OF ORIGIN
+HANDSIGNED INSURANCE POLICY/CERTIFICATE COVERING ALL RISKS AS PER I.C.C. FOR 110 PCT OF THE INVOICE AMOUNT
47A: ADDITIONAL CONDITION
10PCT MORE OR LESS IN AMOUNT AND QUANTITY ALLOWED
71B: CHARGES ALL CHARGES AND COMMISSIONS OUTSIDE U.S.A. ARE
FOR BENEFICIARY’S ACCOUNT
48: PERIOD FOR PRESENTATION WITHIN 15 DAYS
49: CONFIRMATION INSTRUCTIONS WITHOUT
78: INSTRUCTIONS TO THE PAYING/ACCEPTING/NEGOTIATING BANK AT MATURITY DATE, UPON RECEIPT OF COMPLYING DOCUMENTS C/O OURSELVES, WE WILLCOVER THE REMITTING BANK AS PER THEIR INSTRUCTIONS
(2)根据信用证内容回答下列问题：

该信用证允许受益人使用的金额是( )。

A．USD73185

B．USD76670

C．USD69700
查看答案
单项选择题

目前我国纳入安全监察范围的压力容器应同时具备下列（）个条件。

A、1

B、3

C、2

D、4
查看答案