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下列各有机物物质的量相同,其中碳元素百分含量最高的是(  )。

发布日期:2021-11-07

下列各有机物物质的量相同,其中碳元素百分含量最高的是(  )。
A

丙烷

B

丙醛

C

丙炔

D

丙烯

E

丙酸

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理化检验技术(师)

理化检验技术(师)基础知识

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Passage 7Questions 19-33  ● Read this article about the effect of the Asian crisis on Latin American countries.  ● Choose the correct word from A, B, C or D to fill in each gap.  ● For each question 19-33, mark one letter A, B, C or D on your Answer Sheet.  ● There is an example at the beginning. (0).  Latin American stocks fell for a second day on Friday in reaction to Asia’s currency and stock market crash. There were fears that the Asian crisis could (0)______. investors in other emerging markets.  Argentina and Mexico (19)______ the highest falls, with their indexes down by 4% by the (20)______ of trading on Friday. Brazil’s Bovespa index, which on the same day (21)______ by far the steepest plunge in the Americas, was down 2.9%.  “What’s happening in Hong Kong has been a terrible (22)______ to the system,” said Richard Watt, who (23)______ 3. 5 billion dollars in emerging market investments for BEA Associates in New York. Investors in Brazil were concerned that its economic problems were dangerously (24)______ to those that have caused the currency and market plunges in Thailand, Malaysia and other Asian (25)______  “Brazil’s economy is far from (26)______ ,” said lan Campbell, chief economist at ABN Amro Bank NV Amsterdam. “Its current account and fiscal (27)______ are large and its currency is overvalued. “There’s no (28)______ in trying to catch a falling knife,” said Jane Heap, Latin American stock strategist at Deutsche Morgan Grenfell. “There’s no room for (29)______ in Brazil until the US and Asia get back to normal. “  There were also concerns that foreign investors who specialise in emerging markets could be (30)______ to sell their shares in Latin America to (31)______ their Asian losses.  “There’s a lot of nervousness about whether investors will (32)______ their money out of stocks, because of instability in Asia,” said German Guerrero, chief trader at the Chilean brokerage Celfin SA.  Chilean markets were down only (33)______ in afternoon trading. The Chile selective stock index fell 0.72 % and the Chile general stock index was down 0. 64 %.  Example:  A  perform    B  influence    C conduct   D  make  19. A. sent     B. experienced    C. took      D. enjoyed  20. A. stop     B. cancellation    C. close      D. collapse  21. A. urged     B. delivered     C. recovered   D. suffered  22. A. shock     B. reaction      C. block      D. attack  23. A. directs    B. earns       C. deals     D. manages  24. A. identical   B. similar       C. equal     D. related  25. A. capitals   B. investments    C. markets    D. indexes  26. A. sound     B. high        C. true      D. hope  27. A. debts     B. deficits      C. shortages   D. dues  28. A. idea      B. help        C. price     D. point  29. A. cure      B. renewal      C. aid      D. improvement  30. A. promised    B. reminded      C. offered    D. forced  31. A. fill      B. pay         C. cover     D. replace  32. A. sell      B. pull        C. put       D. rub  33. A. slightly   B. really       C. fairly     D. badly

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