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【单选题】
患者，女，67岁，无牙颌。牙列缺失多年，旧义齿使用10。口外检查颌面部左右对称，面下1／3距离较短。无TMJ异常症状。口内检查上下颌牙槽嵴表面平整，上腭中部黏膜发红，局部有白点。上颌牙槽嵴丰满度中等，后牙区牙槽嵴吸收明显，唇系带附丽较低。下颌牙槽嵴吸收程度Ⅲ级。上、下颌颌间距离较大。对上述患者以下哪些步骤不是提高义齿固位力的有效方法（）
A.
尽量利用下颌舌骨后间隙来固位
B.
正确排列人工牙，获得良好的咬合关系
C.
人工牙排列在中立区偏颊侧以避让舌体运动
D.
义齿磨光面形成一定的凹面
E.
基托尽可能地与组织面密合
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举一反三
【多选题】人字板的作用包括（）。
A.
取向
B.
稳定膜管
C.
逐渐将圆筒形的薄膜折叠成平面状
D.
进一步冷却薄膜
查看完整题目与答案
【单选题】Sharks are fish. There are about 350 species of sharks. The smallest sharks are only 12. 5 cm long. The largest, the whale shark, is the world's largest fish. It grows to about 1Sm long. Sharks are di...
A.
humans' friends
B.
man's enemies
C.
the world's largest fish
D.
not the same as other fish
查看完整题目与答案
【简答题】对下列各题分别证明G是否为F1，F2，…，FN的逻辑结论。 (1)F1：(?z)( ?y)P(x，y) G：(?y)( ?x)P(x,y) (2)F1：(?x)(P(x)∧(Q(a)∨Q(b))) G：(?z)(P(x)∧Q(x)) (3)F1：(?x)(?y)(P(f(x))∧Q(f(b))) G：P(f(a))∧P(y)∧Q(y) (4)F1：(?x)(P(x)→(?y)(Q(y)→～L(x，...
查看完整题目与答案
【多选题】人字板的作用包括_____
A.
取向
B.
稳定膜管
C.
进一步冷却薄膜
D.
逐渐将圆筒形的薄膜折叠成平面状
E.
以上都是
查看完整题目与答案
【单选题】What contributes most to the overfishing of sharks is ______,
A.
the sharks accidentally captured by tuna fishers
B.
the rough few decades that sharks have suffered
C.
the ever-increasing demand for their fins and meat
D.
the millions of sharks killed deliberately each year
查看完整题目与答案
【单选题】What is the use of a seismograph?
A.
It is used to record the strength of an earthquake or seaquake.
B.
It is used to record the direction of an earthquake or seaquake.
C.
It is used to reocrd the length of time of an earthquake or seaquake.
D.
It is used to predict when a tidal wave will hit land.
查看完整题目与答案
【简答题】Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has ...
查看完整题目与答案
【简答题】21 对下列各题分别证明G是否为F1,F2,......Fn的逻辑结论。其中(1)(2)(3)
查看完整题目与答案
【简答题】对下列各题分别证明 G 为 的逻辑结论。
查看完整题目与答案
【单选题】下列期权中,属于实值期权的是( )。( 知识点: 实值期权 的定义 ;难易程度:中 )
A.
行权价为 300 ，标的资产市场价格为 350 的看涨期权
B.
行权价为 350 ，标的资产市场价格为 300 的看涨期权
C.
行权价为 300 ，标的资产市场价格为 350 的看跌期权
D.
行权价为 300 ，标的资产市场价格为 300 的看涨期权
查看完整题目与答案
相关题目：
【多选题】人字板的作用包括（）。
A.
取向
B.
稳定膜管
C.
逐渐将圆筒形的薄膜折叠成平面状
D.
进一步冷却薄膜
查看完整题目与答案
【单选题】Sharks are fish. There are about 350 species of sharks. The smallest sharks are only 12. 5 cm long. The largest, the whale shark, is the world's largest fish. It grows to about 1Sm long. Sharks are di...
A.
humans' friends
B.
man's enemies
C.
the world's largest fish
D.
not the same as other fish
查看完整题目与答案
【简答题】对下列各题分别证明G是否为F1，F2，…，FN的逻辑结论。 (1)F1：(?z)( ?y)P(x，y) G：(?y)( ?x)P(x,y) (2)F1：(?x)(P(x)∧(Q(a)∨Q(b))) G：(?z)(P(x)∧Q(x)) (3)F1：(?x)(?y)(P(f(x))∧Q(f(b))) G：P(f(a))∧P(y)∧Q(y) (4)F1：(?x)(P(x)→(?y)(Q(y)→～L(x，...
查看完整题目与答案
【多选题】人字板的作用包括_____
A.
取向
B.
稳定膜管
C.
进一步冷却薄膜
D.
逐渐将圆筒形的薄膜折叠成平面状
E.
以上都是
查看完整题目与答案
【单选题】What contributes most to the overfishing of sharks is ______,
A.
the sharks accidentally captured by tuna fishers
B.
the rough few decades that sharks have suffered
C.
the ever-increasing demand for their fins and meat
D.
the millions of sharks killed deliberately each year
查看完整题目与答案
【单选题】What is the use of a seismograph?
A.
It is used to record the strength of an earthquake or seaquake.
B.
It is used to record the direction of an earthquake or seaquake.
C.
It is used to reocrd the length of time of an earthquake or seaquake.
D.
It is used to predict when a tidal wave will hit land.
查看完整题目与答案
【简答题】Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has ...
查看完整题目与答案
【简答题】21 对下列各题分别证明G是否为F1,F2,......Fn的逻辑结论。其中(1)(2)(3)
查看完整题目与答案
【简答题】对下列各题分别证明 G 为 的逻辑结论。
查看完整题目与答案
【单选题】下列期权中,属于实值期权的是( )。( 知识点: 实值期权 的定义 ;难易程度:中 )
A.
行权价为 300 ，标的资产市场价格为 350 的看涨期权
B.
行权价为 350 ，标的资产市场价格为 300 的看涨期权
C.
行权价为 300 ，标的资产市场价格为 350 的看跌期权
D.
行权价为 300 ，标的资产市场价格为 300 的看涨期权
查看完整题目与答案