听录音填空, 每空一词。A：Excuse me, here is my 1 tag，but I can't find my 2 .B：How many 3 of baggage have you 4 ?A: Just 5 piece.B: Can you tell me the 6 of your baggage?A: It' s a big leather 7 with my 8 Lily on it.B: Don't 9 . We will 10 for it right now.

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2022-06-10 问题

听录音填空, 每空一词。A：Excuse me, here is my 1 tag，but I can't find my 2 .B：How many 3 of baggage have you 4 ?A: Just 5 piece.B: Can you tell me the 6 of your baggage?A: It' s a big leather 7 with my 8 Lily on it.B: Don't 9 . We will 10 for it right now.

2022-06-07 问题

A: I’m awfully sorry. I hope I haven’t spoiled it.B: (). A: Oh, it’s nothing. Don’t let a little thing like that worry you. B: I know you are unintentional. Just be more careful next time. C: There is no need for you to say sorry. Anyway, I can buy a new one. D: You are right. You haven’t spoiled it. You see, it’s still in good condition.

A: I’m awfully sorry. I hope I haven’t spoiled it.B: (). A: Oh, it’s nothing. Don’t let a little thing like that worry you. B: I know you are unintentional. Just be more careful next time. C: There is no need for you to say sorry. Anyway, I can buy a new one. D: You are right. You haven’t spoiled it. You see, it’s still in good condition.

2022-06-06 问题

Dictation: listen to the audio and fill in the blank.[音频]A: What do you think about the ___1_of the new museum?B: I like it. It’s quite__2_, so I feel engaged before I even see the exhibits.A: I agree, and there are 3seating areas, too.B: There is one problem, though. There's no 4 place to park.A: True, but it's in a 5zone, so they don't want you to drive to it.B: That makes sense. Too much traffic is really _6_for the area. Tm sure they want it to be 7___to tourists.

Dictation: listen to the audio and fill in the blank.[音频]A: What do you think about the _____1_____of the new museum?B: I like it. It’s quite______2_____, so I feel engaged before I even see the exhibits.A: I agree, and there are ______3______seating areas, too.B: There is one problem, though. There's no ______4______ place to park.A: True, but it's in a ______5______zone, so they don't want you to drive to it.B: That makes sense. Too much traffic is really _______6_______for the area. Tm sure they want it to be ______7_______to tourists.

2022-05-28 问题

Whichtwowordsareclosestinmeaning? cycle，hawk，convey，extort，peddle，summon

2022-06-14 问题

设A{a,b}，则P(A)×A = ( )。 A: A B: P（A） C: {<Φ,a>,<Φ,b>,<{a},a>,<{a},b>,<{b},a>,<{b},b>,<A,a>,<A,b>} D: {<a,,Φ,>,<b,,Φ,>,<a,{a}>,<b,{a}>,<a,{b}>,<b,{b}>,<a,A>,<b,A>}

2022-07-01 问题

以下哪段代码可以将A,B的值互换（） A: A=A^B; B=A^B;A=A^B B: A= A^B;A=A^B;B=A^B C: B= A^B; B=A^B; A=A^B D: B=A^B; A= A^B; A= A^B

2022-07-01 问题

若集合A={a，b}，B={ a，b，{ a，b }}，则（）。 A: A⊆B，且A∈B B: A∈B，且B⊆A C: A⊈B，且A∉B D: A∉B，且A⊈B

2022-06-08 问题

设论域D={a,b}，与公式[img=504x85]17d6234b6469e12.png[/img]等价的命题公式是（） A: (A（a）∧A（b）) → (B（a）∧B（b）) B: (A（a）→B（a）)∨(A（b）→B（b）) C: (A（a）∨A（b）) → (B（a）∨B（b）) D: (A（a）→B（a）)∧(A（b）→B（b）)

设论域D={a,b}，与公式[img=504x85]17d6234b6469e12.png[/img]等价的命题公式是（） A: (A（a）∧A（b）) → (B（a）∧B（b）) B: (A（a）→B（a）)∨(A（b）→B（b）) C: (A（a）∨A（b）) → (B（a）∨B（b）) D: (A（a）→B（a）)∧(A（b）→B（b）)

2022-06-14 问题

设论域D={a,b},与公式[img=126x21]17da63121bb0ede.png[/img]等价的命题公式是( ) A: (A(a)∧A(b)) → (B(a)∧B(b)) B: (A(a)→B(a))∨(A(b)→B(b)) C: (A(a)∨A(b)) → (B(a)∨B(b)) D: (A(a)→B(a))∧(A(b)→B(b))

设论域D={a,b},与公式[img=126x21]17da63121bb0ede.png[/img]等价的命题公式是( ) A: (A(a)∧A(b)) → (B(a)∧B(b)) B: (A(a)→B(a))∨(A(b)→B(b)) C: (A(a)∨A(b)) → (B(a)∨B(b)) D: (A(a)→B(a))∧(A(b)→B(b))

2021-04-14 问题

优学院: 一人造地球卫星到地球中心O的最大距离和最小距离分别是RA和RB．设卫星对应的角动量分别是LA、LB，动能分别是EKA、EKB，则应有     [     ]<o:p></o:p>

优学院: 一人造地球卫星到地球中心O的最大距离和最小距离分别是RA和RB．设卫星对应的角动量分别是LA、LB，动能分别是EKA、EKB，则应有     [     ]<o:p></o:p>

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