阿魏酸是下列哪类化合物() A.香豆素 B.木脂素 C.苯丙酸 D.蒽醌类 E.黄酮

题型:单项选择题 A1/A2型题

问题:

阿魏酸是下列哪类化合物()

A.香豆素

B.木脂素

C.苯丙酸

D.蒽醌类

E.黄酮类

考点:钳工技能考试内燃机车钳工考试内燃机车钳工考试题库
题型:单项选择题 A1/A2型题

给定四个结论:

(1)若命题p为“若a>b,则a2>b2”,则¬p为“若a>b,则a2≤b2”;

(2)若p∨q为假命题,则p、q均为假命题;

(3)x>1的一个充分不必要条件是x>2;

(4)“全等三角形的面积相等”的否命题是真命题.

其中正确的命题序号是______.

题型:单项选择题 A1/A2型题

—What made him so worried.

       his wallet.

A.Having lost

B.Losing

C.Lose

D.Lost

题型:单项选择题 A1/A2型题

第II卷(共三节,满分50分)

第五部分:基础和写作(共三节,满分50分)

第一节单词拼写

根据中文提示或首字母填写单词(每空1分,共10分)。

56.You mustn’t come here without ____________(允许).

57. The __________  (宗教的) origins of the custom are unknown.

58. The visitors a________ the beauty of the park.

59.She was _________(授予) a medal for her bravery.

60. What is for dinner? I am s_________.

61.The child couldn’t keep his_________ (平衡)on his new bike.

62. The two schools will be_________(组合)to form one big new school.

63. She rose, g_________ at the rude waiter.

64.Why not advertise the ___________(好处) of our foods to attract customers.

65. A friend is one that can share my _________ (忧伤) and happiness.

根据所给出词的适当形式填空 (每空1分,共5分) 。

66. There are different kinds of________ (celebrate) for Halloween in different

western countries.

67.If you were an ________ (independence) man, It means you could earn your living by yourself.

68. He found her menu so_________ (limit) that he stopped worrying.

69. I have hardly enough _______ (strong) left to move my feet.

70. I had to explain the reasons to satisfy his _______(curious).

题型:单项选择题 A1/A2型题

患者女性,29岁,妊娠8月,主诉上腹部疼痛1天,查右下腹麦氏点后上方有压痛反跳痛,肌紧张,白细胞20×109/L,应用:

A.阑尾穿孔,急性腹膜炎
B.胃十二指肠穿孔腹膜炎
C.阑尾周围脓肿
D.膈下脓肿
E.盆腔脓肿

题型:单项选择题 A1/A2型题

下列对诊断肝外胆管结石的影像学检查评价,不正确的是().

A.B超可查明有无胆管扩张、阻塞,并提示阻塞的原因

B.ERCP可提示梗阻部位和病变性质

C.PTC胆系显影成功率高,结石诊断率高,除用作诊断,还可用作引流

D.术中胆道造影可获得较清楚的胆系影像,有利于诊断治疗

E.CT检查可显示胆管扩张程度,证实胆道梗阻的存在及其部位,故应优先选用

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