【单选题】【消耗次数:1】
Although she wrote a lot of short stories and poems when she was very young, _____she was twenty five.
her first real success did not come until
her real first success came until not
since her first real success did not come until
not until her first real success
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相关题目
【单选题】 Although she wrote a lot of short stories and poems when she was very young, ____ she was twenty five.
①  her first real success did not come until
②  her real first success came until not
③  since her first real success did not come until
④  not until her first real success
【单选题】 It was not until she had finished all her work_____.
①  did she return
②  that she returned
③  when she returned
④  that did she return
【单选题】 Although Mary is satisfied with her success, she wonders __________ will happen to he private life.
①  how
②  who
③  what
④  that
【单选题】 It was not until she had arrived home __________ remembered her appointment with the doctor.
①  when she
②  that she
③  and she
④  she
【单选题】 I noticed she avoids making any reference _______ her first husband in her latest
①  with
②  in
③  on
④  to
【单选题】 Not until the pretty woman opened her mouth and spoke, ______she was a foreigner.
①  did I realize
②  had I realized
③  I had realized
④  I realized
【单选题】 The ( )to her success is her confidence and persistence.
①  road
②  way
③  key
④  cause
【单选题】 27.She did her work _________her manager had instructed.
①  as
②  until
③  when
④  though
【单选题】 ____ before, his first performance for the amateur dramatic group was a success.
①  Though having never acted
②  As he had never acted
③  Despite he had never acted
④  In spite of his never having acted
【单选题】 She got married although her parents had not given her their ___.
①  allowance
②  consent
③  permit
④  appreciation
随机题目
【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/C5B250D08760036311B4D98FE05A6C76.png title=QQ截图20190715141952.png alt=QQ截图20190715141952.png/>
①  只有当牵连运动为平移时成立;
②  只有当牵连运动为转动时成立;
③  无论牵连运动为平移或转动时都成立;
④  无论牵连运动为平移或转动时都不成立。
【单选题】 作用在同一刚体上的两个力F1和F2,若 F1 = - F2,则表明这两个力
①  必处于平衡;
②  大小相等,方向相同;
③  大小相等,方向相反,但不一定平衡;
④  必不平衡。
【单选题】 点作曲线运动时,
①  若始终有v^a,则必有?v?=常量
②  若始终有v^a,则点必作匀速圆周运动
③  不可能存在某瞬时有v//a
④  若某瞬时v= 0,则其加速度a必等于零
【单选题】 图示三个均质圆盘A、B、C的重量均为P,半径均为R,它们的角速度w的大小、转向都相同。A盘绕其质心转动,B盘绕其边缘上O轴转动,C盘在水平面上向右滚动而无滑动。在图示位置时,A、B、C三个圆盘的动量分别用KA、KB、KC表示,则<img src=https://huaweicloudobs.ahjxjy.cn/897D0AE1E382215A7B095EC4A93061BE.png title=QQ截图20190715141952.png alt=QQ截图20190715141952.png/>
①  KA=KB=KC;
②  KA1KB1KC;
③  KA1KB=KC;
④  KA=KB1KC;
【单选题】 以下四种情况(F1 = F2 = F)的说法,哪一种是正确的
①  力偶(F,F’)与力2F对圆轮的作用是等效的;<img src=https://huaweicloudobs.ahjxjy.cn/C8450E9B543CCDB2C2E4F1D6F0731D50.png title=1.png alt=1.png/>
②  力F1与力F2和力偶M对圆轮的作用是等效的;<img src=https://huaweicloudobs.ahjxjy.cn/45C9A84B759E2AB5D63156894401029B.png title=2.png alt=2.png/>
③  力F1与力F2和力偶M互相平衡;<img src=https://huaweicloudobs.ahjxjy.cn/F4CE064F1D83454D12C8384B16CC6790.png title=3.png alt=3.png/>
④  力F与力偶M互相平衡。<img src=https://huaweicloudobs.ahjxjy.cn/C77F579D092084D78877BED78653D8B2.png title=4.png alt=4.png/>
【单选题】 点作曲线运动时,在其运动过程中的某瞬时
①  可能有?v?10 ,?a?= 0
②  不可能有?v?= 0 ,?a?10
③  可能有?v?= 0 ,?a?= 0
④  不可能有?v?= 0 ,?a?= 0
【单选题】 质量相等的两质点,若它们在一般位置的受力图相同,所选的坐标形式相同,则它们的运动微分方程
①  必然相同;
②  也可能不相同;
③  只有在运动初始条件相同的条件下才会相同;
④  在运动初始条件相同时也可能不相同。
【单选题】 图示系统摩擦忽略不计,球重为P,三角木块重量不计挡块G高度为h。为使系统处于平衡,下述说法哪个是正确的?<img src=https://huaweicloudobs.ahjxjy.cn/5BD71C02CFB1DE2064637D3D312382C1.png title=QQ截图20190715141952.png alt=QQ截图20190715141952.png/>
①  能使系统平衡的h值是唯一的。
②  任意h值都能使系统平衡。
③  无论h取何值,系统均不能平衡。
④  只要h值在某一范围内,系统就处于平衡。
【单选题】 设A、B两质点的质量分别为mA、mB,它们在某瞬时的速度大小分别为vA、vB,则
①  当vA=vB,且mA=mB时,该两质点的动量必定相等;
②  当vA=vB,而mA1mB时,该两质点的动量也可能相等;
③  当vA1vB,且mA1mB时,该两质点的动量有可能相等;
④  当vA1vB,且mA1mB时,该两质点的动量必不相等;
【单选题】 图示机构中各杆的自重均忽略不计。其中各杆哪些是二力构件?<img src=https://huaweicloudobs.ahjxjy.cn/8CC4BD6F0DFFD98F68C082FB8BB8CFB4.png title=QQ截图20190715141952.png alt=QQ截图20190715141952.png style=width: 493px; height: 177px; width=493 height=177/>
①  OA是二力构件。
②  ABC是二力构件。
③  BE是二力构件。
④  CD是二力构件。