前牙固定桥固位体应选择 A.3/4冠 B.金属烤瓷全冠 C.铸造开面冠 D.塑料全冠

题型:单项选择题

问题:

前牙固定桥固位体应选择

A.3/4冠
B.金属烤瓷全冠
C.铸造开面冠
D.塑料全冠
E.铸造金属全冠

考点:口腔执业助理医师口腔执业助理医师2000年真题
题型:单项选择题

湿热伤中泄泻宜用()

A.芍药汤加减

B.葛根芩连汤加减

C.一贯煎合芍药甘草汤加减

D.茵陈蒿汤加减

E.清中汤加减

题型:单项选择题

Another cultural aspect of nonverbal communication is one that you might not think about: space. Every person perceives himself to have a sort of invisible shield surrounding his physical body. When someone comes too close, he feels uncomfortable. When he bumps onto someone, he feels obligated to apologize. But the size of a person’s "comfort zone" depends on his cultural ethnic origin. For example, in casual conversation, many Americans stand about four feet apart. In other words, they like to keep each other "at arm’s length", people in Latin or Arab cultures, in contrast, stand very close to each other, and touch each other often. If someone from one of those cultures stands too close to an American while in conversation, the American may feel uncomfortable and back away.
When Americans are talking, they expect others to respond to what they are saying. To Americans, polite conversationalists empathize by displaying expressions of excitement or disgust, shock or sadness. People with a "poker face", whose emotions are hidden by a deadpan expression, are looked upon with suspicion. Americans also indicate their attentiveness in a conversation by raising their eyebrows, nodding, smiling politely and maintaining good eye contact. Whereas some cultures view direct eye contact as impolite or threatening, Americans see it as a sign of genuineness and honesty. If a person doesn’t look you in the eye, American might say, you should question his motives—or assume that he doesn’t like you. Yet with all the concern for eye contact, Americans still consider staring—especially at strangers—to be rude.

A "poker face" (Line 3, Par

A.2) refers to a face which is ______.A. attentiveB. emotionalC. suspiciousD. expressionless

题型:单项选择题

受高空落物伤人的启示,美军正在研制一种名为“上帝之杖”的太空武器.“上帝之杖”实质就是高密度、耐高温的金属棒,它要依托太空平台的搭载,借助小型火箭助推到高空中,利用它下落时的巨大动能,对地球战略目标实施打击,破坏力巨大。它攻击目标的巨大能量主要来源于

A.小型火箭助推动能

B.“上帝之杖”本身的内能

C.下落过程重力势能转化的动能

D.与大气摩擦产生的能量

题型:单项选择题

短周期元素Q、R、T、W在元素周期表中的位置如图所示,其中T所处的周期序数与主族族序数相等,请回答下列问题:

(1)T元素的原子结构示意图为______,Q元素在元素周期表中的位置为______,R元素单质的电子式为______.

(2)原子序数比T少2的元素是______(填元素符号),用电子式表示该元素与W元素形成化合物的过程______.

(3)原子序数比W多4的元素是______(填元素符号),该元素最高价氧化物的水化物溶液与W元素最高价氧化物的水化物溶液反应的离子方程式为:______.

题型:单项选择题

黄耆九物汤功效与作用

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