
IF and ONLY IF cet
Authored by MK Ching
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University
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如果某人不滿 18 歲,那人便不可入戲院觀看三級影片.
滿 18 歲是可入戲院觀看三級影片的__________________條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一個圖形是等邊三角形,就是等角三角形 ;是等角三角形,就是等邊三角形.
等邊三角形是等角三角形的_______條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
假定「只要所有科目及格,你便能夠升班。但若你未能在所有科目得及格,便不能升班了。」
「所有科目及格」是「升班」的___________________條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
「若A則B 」這個條件句而言
A不是B的充分條件
A是B的充分條件
A是B的必要條件
以上都不是
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X = 3 是 X2 =9 的___________________條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X2 =9是X = 3 的___________________條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
命題B要有命題A才會成立時
命題A是命題B的___________________條件。
充分條件
必要條件
沒有充分或必要條件
既充分亦必要
以上都不是
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