第8题: [单项选择]A) He made 3 speeches every 6 days. B) He made 3 speeches in 6 days. C) He made 6 speeches in 3 days. D) He was going to start his fourth speech. 参考答案:C 答案解析:[听力原文] M:Is this his third speech in these three days W:No,it’s the sixth. Q:How many spee
第34题: [单项选择]Which of the following statements is NOT true of the passage
a. It discusses fertility clinics.
b. It defines stem cells.
c. It mentions artificial fertilization.
d. It identifies the origins of stem cells. 参考答案:A 答案解析:[听力原文]
Stem cells are undeveloped human cells that can grow into many or all of the different speci