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【简答题】
In that state of paranoia, my husband and I began a 1_________ of fighting about why he wasn’t taking on half of the childcare duties. In my Western eyes, he was falling short of my expectations and wasn’t 2_________ his role as a father. I was incensed at his laziness when it came to washing diapers, for example, or his 3 _________ work-related time away from home rather than coming home to be with his daughter. Or, worse, his 4 ________ expectation that while his mother was in our 5_______________, she would just wash up every dish he used.
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【单选题】设 P : 2 + 2 = 4 , Q : 3 + 3 = 6 ,命题 “ 若 2 + 2≠4 ,则 3 + 3≠6 ,反之亦然。 ” 的真值为【 】。
A.
0
B.
1
【单选题】以下哪个行为不属于“进行人气商品炒作”
A.
商家对所发布的商品，注册多个个人帐号进行虚假交易，抬高商品人气
B.
将C2C店铺中商品的销售记录，以截图方式上传在商城店铺进行宣传
C.
将商城店铺内之前买家的评价展示在商城商品页面进行宣传
D.
商家通过虚设价格或虚假交易，抬高商品人气的行为
【简答题】设p:2+2=4,q:3+3=6,将下列命题符号化(可用文字表述) (1)2+2=4当且仅当3+3=6 (2)2+2=4的充要条件是3+3 ≠6 (3)2+2 ≠ 4与3+3=6互为充要条件 (4)若2+2 ≠ 4,则3+3 ≠ 6;反之亦然
【简答题】设p:2+2=4,q:3+3=6,下列命题的真值为 (1)2+2=4当且仅当3+3=6 (2)2+2=4的充要条件是3+3 ≠6 (3)2+2 ≠ 4与3+3=6互为充要条件 (4)若2+2 ≠ 4,则3+3 ≠ 6;反之亦然
【单选题】设 P : 2 + 2 = 4 , Q : 3 + 3 = 6 ,命题 “ 若 2 + 2≠4 ,则 3 + 3≠6 ,反之亦然。 ” 的符号化表示为【 】。
A.
P ∨ Q
B.
P à Q
C.
┐ P « ┐ Q
D.
P « Q
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