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问题 单项选择题

对于一个健康成长的公司来说，筹资活动的现金流量应该是（ ）。

A．正的

B．负的

C．正负相间的

D．固定的

答案

参考答案：C

单项选择题

A


Little Tommy was doing very badly in math. His parents had tried everything—tutors (家庭教师), cards, special learning centers—in short, everything they could think of. Finally they took Tommy to a catholic (天主教) school.
After the first day, little Tommy came home with a very serious look on his face. He didn’t kiss his mother and say hello. Instead, he went straight to his room and started studying. Books and papers were spread (铺开) out all over the room and little Tommy was hard at work. His mother was surprised. She called him down to dinner and as soon as he finished eating, he went back to his room, without a word. In no time he was back hitting the books as hard as before. This went on for some time, day after day while the mother tried to understand what was happening.
Finally, little Tommy brought home his report card. He quietly put it on the table and went up to his room and hit the books. His room looked at it and to her surprise, little Tommy got an A in math. She could no longer hold her curiosity (好奇心). She went to his room and asked, "Son, what was it Was it the nuns (修女)"
Little Tommy looked at her and shook his head," No. "
"Well then," she asked again. "WHAT was it"
Little Tommy looked at her and said, "Well, on the first day of school, when I saw that man nailed (钉) to the plus sign (加号), I knew they weren’t joking. \

Why did Tommy’s parents send him to a catholic school ( )

A．Because he could eat well there.

B．Because he could earn more about nuns.

C．Because his parents wanted him to do better in his math.

D．Because his parents didn’t want him to learn math any mor
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单项选择题

下列哪一项对滴丸圆整度无影响( )

A．滴丸单粒重量
B．滴管的长短
C．液滴与冷却液的密度差
D．液滴与冷却剂的亲和力
E．冷却方式
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