在Excel中,若要在当前工作表中选取多个不连续的单元格区域时,鼠标拖动时必须先按住键盘上的()键。
Alt
B. Ctrl
C. Shift
D. Ctrl+Shift
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The case history of tile twirls appears to support the conclusion that
A. individual with identical brains seldom test at the same level.
B. an individual's intelligence is determined only by his environment.
C. lack of opportunity blocks the growth of intelligence.
D. changes of environment produce changes in the structure of the brain.
SECTION A CONVERSATIONS
Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
听力原文:W: Carl, what's it like now? You have been training pretty hard for the Olympics and other major competitions for many years.
M: Well, right now this is my last season. Of course I'm staying in shape to do that. But I'm going to stay in shape. I mean I've always been fit so that's something I'm interested in doing.
W: You don't want to sit down and have a double cheeseburger? Come on, Carl.
M: No, no. That's just because I've always tried to stay in shape and I like that, it's obviously healthy for me as well.
W: Is there anything in the back of your mind that wants you to take part in the Olympic Games again? How old are you now Carl?
M: I'm 35, and no, there is nothing in the back of my mind. I've gone long enough and now it's time, I think. For me it's a lot of fun. But you can't go on for ever. You can make two choices: you can run until they won't let you in meets anymore or you can just say this is enough. I decide on the second.
W: Good for you. And you certainly would be in that competition for greatest Olympian ever with the 9 gold medals.
Why does Carl avoid a double cheese burger?
A. Because he has to take part in all kinds of meets.
Because he's been on a diet.
C. Because he doesn't like to eat it in this season.
D. Because he likes to stay in shape.
上市公司就发行证券事项召开股东大会,应当提供网络或者其他方式为股东参加股东大会提供便利。上市公司发行新股决议两年有效;决议失效后仍决定继续实施发行新股的,须重新提请股东大会表决。()
A. 正确
B. 错误
间接抗人球蛋白试验是测定
A. 血中游离的IgG
B. 红细胞膜上的IgM
C. 红细胞膜上的IgG
D. 红细胞膜上的C3
E. 血中游离的IgM