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【判断题】
电路的谐波失真就是非线性失真。 ( )A.
正确
B.
错误
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【简答题】综合填空 选择方框中的单词并用其适当形式填空。每空限填一词。 An artist went to a beautiful part of the country for a holiday, and stayed with a farmer. Every day he ____小题1: _ ____out with his brushes, and painted from morning to ...
【单选题】患者 , 女性 ,57 岁 , 反复上腹部疼痛半年 , 排黑粪 1 天急诊入院。患者主诉进食 3~4 小时后疼痛明显 , 进餐后可缓解 , 夜间时常被痛醒。患者遵医嘱口服西咪替丁 0.20g, 该药治疗溃疡的主要机制是
A.
抑制壁细胞分泌胃酸
B.
与胃内盐酸反应形成盐与水 , 减低胃内酸度
C.
保护胃黏膜
D.
抗感染
E.
镇痛药
【单选题】向一个栈顶指针为h的带头结点的链栈中插人指针s所指的结点时,应执行( )。
A.
h->next=s;
B.
s->next=h;
C.
s->next=h;h->next=s;
D.
s->next=h->next;h->next=s;
【单选题】女性患者，57岁，胃溃疡病史20年，病情反复加重，近1个月腹痛明显，体重减轻。便隐血检查多次阳性。下列哪项描述提示溃疡恶变
A.
血清胃泌素减低
B.
伴发上消化道出血
C.
胃酸缺乏
D.
多发性溃疡
E.
血清壁细胞抗体阳性
【简答题】完形填空。 There was a time when I thought my dad didn't know a thing about being a good father. I couldn't 1 him ever saying the words 'I love you.' It seems to me his only purpose in life was to say ' 2 ...
【简答题】向一个栈顶指针为 h 的带头结点的链栈中插入指针 s 所指的结点时,应执行 操作。A. h->next=s ; B. s->next=h ; C. s->next=h ;h =s ; D. s->next=h->next
;h->next=s ;
【单选题】根据材料，回答题。 Stop Spam When I first got an e-mail account ten years ago， I received communications only from family， friends， and colleagues._________（46） If we want e-mail to continue to be useful， we n...
A.
Computer programs allow spammers to send hundreds of millions of e-mails almost instantly。
B.
This question is troubling for individuals and companies as well.
C.
But now it seems that every time I check my e-mail， I have an endless series of adver-tisements and other correspondence that do not interest me at all.
D.
Spammers should be fined， and perhaps Sent to prison if they continue to disturb people.
E.
And their employees are thus unable to communicate effectively.
F.
Spamming is more serious in China than in America.
【单选题】患者女性．57岁，胃溃疡病史20年，病情反复加重，近1个月腹痛明显，体重减轻。便隐血检查多次阳性。下列哪项描述提示溃疡恶变
A.
血清促胃液素减低
B.
伴发上消化道出血
C.
胃酸缺乏
D.
多发性溃疡
E.
血清壁细胞抗体阳性
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