开证行在审单时发现不符点，以下哪一项不是开证行所必须做的（） A.说明全部不符点 B

半数组织培养感染剂量（50％tissue culture infective dose，TCIDso）

“中超”足球联赛采用的是主客场制的双循环比赛制度（即每两个队之间都要举行两场比赛）。显然参赛球队的个数对比赛总场次数有直接影响，由于各种原因，到底有几支球队参加“中超”联赛，一直是中国足协考虑的问题之一。在目前的基础上，如果减少4支球队，则比赛总场次数将比现在的总场次数的一半还少6场，那么，现在共有多少支球队参加“中超”联赛？

境外证券经营机构要取得B股席位，必须取得中国证监会颁发的( )。

A．外汇经营许可证

B．证券业从业资格证书

C．经营外资股业务资格证书

D．席位证明

One day before my final exam, my dad gave me a gift. It completely changed my life.
On that day I had a (16) with my friends and it was a difficult time with my studies. I was unhappy. Then I noticed the gift. I (17) it and saw a DVD inside. Its name was "THE SECRET". However, I was in no mood(心情) to watch it. I sat down to study, but the (18) in my life—the fight, the sleepless nights and my poor health...Everything came to my mind. I wanted an answer but I wondered (19) there was any. Just then,I saw the DVD again. Maybe it would be helpful. I (20) my DVD player. I had no words to describe the feelings I experienced while watching it. The moving(动人的) stories of human beings made me so moved that I wouldn’t (21) any of them.
Thanks to my father’s gift "THE SECRET", I discovered (22) . Everybody has difficulties in their lives. The important thing is that you should be (23) enough to face them. Now I have started (24) my studies and my friends. And I’m in good health, too. I often hear people say, "Wow! (25) perfect life you have! \

Ⅱ. 完形填空/Cloze

A．trip

B．party

C．talk

D．fight

甲醇洗热再生塔再沸器投用时应进行（）。

A.排气

B.排液

C.排惰

D.无要求