细胞核内P53基因的失活最可能发生的变化是
A.细胞不能进入细胞周期B.细胞发生恶性转化C.细胞发生凋亡D.细胞生长速度减慢E.细胞获得凋亡潜能
参考答案:B
阅读下面短文,从短文后各题所给的四个选项(A、B、C 和 D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
A Heroic Driver
Larry works with Transport Drivers. Inc. One morning in 2009. Larry was 41
along 165 north after delivering to one of his 42 . suddenly, he saw a car with its bright lights on. 43 he got closer, he found 44 vehicle upside down on the road. One more look and he noticed 45 shooting out from under the 46 vehicle. Larry pulled over, set the brake and 47 the fire extinguisher (灭火器). Two good bursts from the extinguisher and the fire was put out.
The man who had his bright lights on 48 and told Larry he had 49 an emergency call. They 50 heard a woman’s voice coming from the wrecked (毁坏的) vehicle. 51 the vehicle, they saw that a woman was trying to get out of the broken window. They told her to stay 52 until the emergency personnel arrived, 53 she thought the car was going to 54 . Larry told her that he had already put out the fire and she should not move 55 she injured her neck.
Once fire and emergency people arrive, Larry and the other man 56 and let them go to work. Then, Larry asked the 57 if he was needed or 58 to go. They let him and the other man go.
One thing is 59 —Larry went above and beyond the call of duty by getting so close to the burning vehicle! His 60 most likely saved the woman’s life.
52()
A.quiet
B.still
C.away
D.calm
企业已售出的药品如发现质量问题,应()
A.及时回收药品给予消费者赔偿
B.及时回收药品,然后销毁药品
C.立即销毁药品
D.向有关管理部门报告,并及时追回药品和做好记录
E.立即通知消费者停止服用