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【判断题】
在标准式本量利关系图中,当现有销售量变化时,会导致利润三角区和亏损三角区同时变动。 ( )A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】若已定义: int i,x=5; ( )执行时不会出现死循环。
A.
for(x=5; x>0; x--);
B.
while(x);
C.
for(i=1; i<10; i-1);
D.
do{ printf("%d\n",x); }while(x);
【单选题】在一起水上浮尸案的现场，侦查人员发现了一封遗书，根据遗书记载的内容，侦查人员推断出死者的家庭、身份，同时，又根据笔迹鉴定，推断出此遗书确实是死者所写。本案中的遗书，属于（）
A.
书证
B.
物证
C.
物证和书证
D.
被害人陈述
【单选题】According to the last two paragraphs，what did the previous researchers think about the hu—man eye’s light—sensing system?
A.
The human eye had two light—sensing systems．
B.
The human eye had one light—sensing system．
C.
The human eye could sense the light of day more quickly than the dark of night．
D.
The human eye could reset our internal clocks in accordance with the alarm clocks．
【单选题】What did the researchers find in the experiment?
A.
Human walking used more energy than bipedal walking in chimps.
B.
One chimp used about the same energy in walking on two legs as on all fours.
C.
Two chimps used more energy walking on two legs.
D.
Three chimps used less energy walking on two legs.
【简答题】5位十六进制数等于( )位的二进制数,例如12345H可以转换为几个位的二进制数。
【多选题】在一起水上浮尸案的现场，侦查人员发现—封遗书，根据遗书记载的内容，侦查人员查出死者的家庭，身份。同时，又根据笔迹鉴定查明遗书确实是死者所写。本案中的遗书属于（）
A.
书证
B.
物证
C.
实物证据
D.
言词证据
【简答题】是一种自动启闭的单向阀门,用于防止流体逆向流动的场合。
【单选题】What did the narrating rat think of human beings?
A.
He thought humans were kind in nature.
B.
He thought humans didn’t appreciate food.
C.
He thought humans were evil in their attempt to kill rats.
D.
He thought humans were good at making different food.
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