Longconversation:U2_3_2.mp3:Q4:Whatistherelationshipbetweenthetwospeakers?
A: Boyfriendandgirlfriend.
B: Teacherandstudent.
C: Husbandandwife.
D: Bossandemployee.
A: Boyfriendandgirlfriend.
B: Teacherandstudent.
C: Husbandandwife.
D: Bossandemployee.
举一反三
- Whatistherelationshipbetweenthetwospeakers? A: Travelagentandcustomer B: Husbandandwife C: Bossandsecretary
- (1)p→q (2)┐q∨r (3)(┐p∨q)∧((p∧r)→p) (4)(q→r)∧(p→p) A: (1)和(2) B: (1)和(3) C: (2)和(3) D: (2)和(4)
- 以(p∧q)←r为前提,其结论为“『r”,则另一个前提是()1p∧q2p∨q3『p∨『q4『p∧『q A: 1 B: 2 C: 3 D: 4
- 设随机变量X~U(0,3),则P{1≤X<2}=()。 A: 1/3 B: 2/3 C: 1/4 D: 3/4
- 更新世包括()。 A: Q<sub>1</sub>、Q<sub>2</sub> B: Q<sub>3</sub>、Q<sub>4</sub> C: Q<sub>1</sub>、Q<sub>2</sub>、Q<sub>3</sub> D: Q<sub>2</sub>、Q<sub>3</sub>、Q<sub>4</sub>