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患者，男性，14岁，因外伤致左上颌中切牙缺失2个月，右上颌中切牙牙折至1／3，且有轻度唇向错位，无明显松动。X线片显示，右上颌中切牙根尖部有阴影，探诊和叩诊阴性。邻牙无异常体征。右上颌中切牙目前的处理方法是A、拔除 B、观察 C、根管治疗 D、盖髓治疗 E、干尸治疗 左上颌中切牙缺失，可采用修复方法是A、双端固定桥 B、种植义齿 C、固定桥 D、无卡环可摘局部义齿 E、半固定桥
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【单选题】Merv: Are these your sons, Jean? I haven't seen them for ages. Jean: Yes, that photo was taken a few months ago. Merv: John hasn't changed a bit. He's the very image of his father, isn't he? Jean: Yes...
A.
He takes up with his father.
B.
He really likes his father.
C.
He looks after his father.
D.
He takes after his father.
【简答题】民俗的基本特征有哪些？分别论述。
【简答题】民俗的基本特征有哪些？
【单选题】Jean Grace came to the shop to buy a Christmas present _________.
A.
for her mother because the latter cared for her quite a lot
B.
for her sister because the latter cared for her quite a lot
C.
for herself because the necklace was very beautiful
D.
for one of her family members because it was a custom
【简答题】比例度表示比例作用的强弱,δ越大,比例控制作用 ;δ越小,比例控制作用 。
【简答题】民俗的基本特征有哪些?
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