47. On terrorism, the writer thinks that many Western governments are ______.
(A) turning blind to the phenomenon
(B) concealing the Soviet bloc’s involvement
(C) covering up their own fault
(D) failing to group up
(E) losing faith

43. What can the readers infer from the passage? (A) Scientists have learned more about the Zika virus and thus vaccine is on the way. (B) The Zika virus still poses as a mystery for scientists. (C) People in Latin America are more vulnerable to the Zika virus because of their hereditary autoimmune disorder. (D) Africans are more resistant to the power of the Zika virus. (E) There is a medical suggestion about being abstain from sex.

44. Which of the following ways is NOT the confirmed way of transmitting Zika? (A) copulation (B) birth (C) mosquito (D) blood transfusion (E) sexual activity

45. Which of the following terms serves as an antonym for the underlined word benign? (A) malignant (B) benevolent (C) gentle (D) kind (E) caring

46. What did the writer believe about international terrorism? (A) It destroys democracy warfare. (B) It is a war against citizens. (C) It is not other people’s problem. (D) It destroys other people’s problem. (E) It is the ultimate democracy.

48. According to the passage, the international terrorism has ______. (A) international connections and political strategies (B) major financial support (C) many individual madmen (D) effective violence (E) none of the above

49. International terrorism mostly takes place in ______. (A) Western countries (B) the Middle East (C) former European colonies (D) where there is political turmoil (E) friends of the United States

50. The ultimate purpose of international terrorism is to ______. (A) let the world understand the Soviet bloc (B) show that the terrorists have power (C) destroy the confidence of citizens of Western democracies (D) disrupt the financial stability of the West (E) none of the above 

1. Which family of compounds has the lowest pKa value (A) alkane (B) alkene (C) alkyne (D) amine (E) alcohol

2. Claisen rearrangement of allyl phenyl ether to ο-allylphenol is a sigmatropic rearrangement. This rearrangement is a [x, y] shift and proceeds under what condition.(A)[1，3] ; thermal (B) [1,3] ; hν (C) [1,7] ; hν (D) [3,3] ; thermal (E) [3, 5] ; hν

3. Which of the following phenols is the most acidic? (A) (B) (C) (D) (E)