【单选题】【消耗次数:1】
His grandfather is very healthy. He _______drinks _______smokes.
both, and
no,but
either, or
neither, nor
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相关题目
【单选题】 Neither he nor I am a musician, _____?
①  am I
②  is he
③  are we
④  do we
【单选题】 Neither John nor his roommates _____ in the dormitory yesterday evening.
①  was
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【单选题】 [填空] apple everyday keeps you healthy.
①  The
②  A
③  An
④  Two
【单选题】 _______every week for several hours is good to keep healthy.
①  Exercise
②  To exercise
③  Should exercise
【单选题】 Neither the students nor the professor______ anything about it.
①  knows
②  know
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【单选题】 Of these two old people the former has died and the [] is alive and healthy.
①  later
②  latter
【单选题】 He set up in business ____ his own and was very successful
①  in
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③  on
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【判断题】 Please stay healthy. You can drink tap water in the hotel.
①  正确
②  错误
【单选题】 Joseph was very lucky ____ with his life; he almost did not get out of the room.
①  to escape
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③  to escaping
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【单选题】 A: I go to the gym twice a week. B: [填空] You look really fit and healthy.
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随机题目
【单选题】 设n (n 3 3)阶无向树 T 的最大度?(T)=2,则其最长路径有多长:
①  n/2;
②  n - 2;
③  n - 1;
④  n。
【单选题】 设无向图 G 有 10 条边, 3 度与 4 度顶点各 2 个, 其余顶点的度数均为2, 则 G 中共有几个顶点:
①  3;
②  4;
③  5;
④  7。
【单选题】 设 G = áV, E?为一无向图. 它是哈密顿图的必要条件是:
①  对于任意的 V1 ì V, 且 V1 1 ?, 均有p(G - V1) £ |V1|;
②  对于任意两个顶点 vi, vj, 均有d(u) + d(v) 3 n;
③  对于任意顶点 v, 均有d(v) 3 n/2;
④  任意顶点的度数都是偶数。
【单选题】 彼得松图不是哈密顿图,至少添加几条边可以变为哈密顿图:
①  1;
②  3;
③  5;
④  7。
【单选题】 设n (n 3 2)阶无向树,下面说法正确的是:
①  是欧拉图;
②  是哈密顿图;
③  是二部图;
④  是自对偶图。
【单选题】 彼得松图不是欧拉图,至少添加几条边可以变为欧拉图:
①  1;
②  3;
③  5;
④  7。
【单选题】 设 G 是 n (n32)阶 n + 1 条边的无向简单连通图, 则以下哪个性质正确:
①  存在顶点 v, d(v)32;
②  存在顶点 v, d(v)33;
③  存在顶点 v, d(v)34;
④  存在顶点 v, d(v)35。
【单选题】 对于3阶完全图 K3,下面哪个说法是正确的:
①  既不是欧拉图也不是哈密顿图;
②  是欧拉图非哈密顿图;
③  是哈密顿图非欧拉图;
④  既是欧拉图又是哈密顿图。
【单选题】 已知 n 阶 m 条边的无向图 G 是 k(k 3 2)棵树组成的森林, 则有:
①  m = n-1;
②  m = n-k;
③  n-m+k=2;
④  2m = n + k。
【单选题】 设一棵无向树 T 有 5 片树叶, 3 个 2 度分支点, 其余的分支点都是 3 度顶点, 问 T 有几个顶点:
①  9;
②  10;
③  11;
④  12。