不属于细胞衰老的特征是 [ ] A．细胞核体积增大，染色质固缩 B．细胞内色素积 发布时间：2017-04-30 19:41 │ 来源：www.tikuol.com 题型：选择题 问题： 不属于细胞衰老的特征是 [ ]A．细胞核体积增大，染色质固缩 B．细胞内色素积累C．酶的活性降低 D．细胞膜上糖蛋白物质减少
题型：选择题 完形填空。 This was the morning, when Jeremy, l4 years old, was to begin his duck shooting. He had 1 the wholeidea ever since his father had bought him 2 and had promised him a 3 to this island. But he loved his father and wanted to 4 him. They came to the beach. To ease the sense of fear, he took a 5 of his father, then he put the camera aside and picked up the gun. His father said happily, "I've been 6 a long time for this day. I'll let you 7 ." He leaned (屈身) forward, eyes narrowed. "There is a small flight (一群) now. Keep your head down; I'll giveyou the 8 ." Jeremy's heart was beating 9 . "No, don't let them come, please!" But they came, closer, closer... "Now,take them!" cried his father. Jeremy felt his body 10 . He stood up, leaned into the gun the 11 his father taught him. In the same distance, the ducks saw the gunners and flared (突然飞去) wildly. For a second he hung there balanced between life and death. There was no sound. Jeremy stood 12 , seizing the gun. "What happened? 13 didn't you shoot?" his father said in a controlled voice. The boy didn't answer. His lips were trembling. "Because they were so 14 ," he said and burst into tears. He sat down, face buried in his hands and wept. All 15 of pleasing his father was gone. He had his chance and he failed . For a moment his father was 16 . And then he said, "Let's try again." Jeremy didn't lower his hands."It's no use, I can't." "Hurry, you'll miss them. Here!" Gold metal touched Jeremy. He 17 up, unbelieving. His father was handing the camera to him, and said softly, "Quick!," Jeremy stood up and pressed his shutter release (快门) button in a flash. "I got them!" His face was bright. Jeremy saw that there was no disappointment in his father's eyes, 18 pride and love. "I'll always love shooting. But that doesn't mean you 19 . Sometimes it takes as much 20 not to do a thing as to do it." He paused. "I think you could teach me how to operate that camera." ( )1. A. hated ( )2. A. toy ( )3.A. game ( )4. A. join ( )5. A. rest ( )6. A. lasting ( )7. A. go ( )8. A. word ( )9. A. wildly ( )10. A. warm ( )11. A. rule ( )12. A. surprisedly ( )13. A. How ( )14. A. lovely ( )15. A. hope ( )16. A. silent ( )17. A. sat ( )18. A. almost ( )19. A. need ( )20. A. energy B. loved B. a camera B. prize B. praise B. breath B. waiting B. shoot B. gun B. widely B. excite B. road B. quietly B. Where B. sad B. means B. cheerful B. looked B. mostly B. might B. work C. hoped C. a bike C. trip C. help C. picture C. looking C. catch C. chance C. tightly C. delay C. way C. still C. Why C. frightening C. decision C. calm C. stood C. even C. dare to C. courage D. known D. a gun D. holiday D. please D. care D. asking D. play D. fact D. nervously D. obey D. path D. hard D. What D. friendly D. practice D. worried D. put D. only D. have to D. mind 查看答案
题型：选择题 有如下事件过程： Private Sub Form_Adivate() Dim Score(1 to 3 ) As Integer Dim i As Integer Dim t As Variant For i=3 To 1 step-1 Score(i)=2*1 Next For Each t In Score Print t Next End Sub 程序运行后窗体上显示的值为 (10) 查看答案