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【单选题】
已知:p:2+3=5;q:大熊猫产在中国;r:太阳从西边升起;则(r→(p∧q))→¬p的真值为:A.
1
B.
0
C.
2
D.
3
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举一反三
【简答题】听下面一段材料，回答第1至第3题。 1. How many cups of coffee has the boy drunk? [ ] A. Two B. Three C. Four 2. Why didn't the boy sleep well last night? [ ] A. Because he was too nervous about his exam. B. Be...
【简答题】全蛋蛋白质含量为______%。鸡蛋蛋白质不但含有人体所需各种氨基酸，而且其组成与人体所需模式很接近，生物学价值达______%以上，为天然食物中最理想的优质蛋白质。
【单选题】W: Did you enjoy yourself at the Christmas Party? M: I didn't go. W: What happened? M: I had a bad cold before Christmas. What about you? W: I didn't attend the party, either. I went to a lecture. 18....
A.
He attended a lecture
B.
He was too busy
C.
He had a bad cold
D.
He didn't want to attend the party.
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