肿瘤由混乱排列的牙组织成分组成,但无典型牙齿()
A.组合性牙瘤
B.混合性牙瘤
C.牙源性钙化上皮瘤
D.牙源性腺样瘤
E.牙源性钙化囊肿
参考答案:B
连词成句。
1. many, people, on, there, are, the, street
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2. a, bandage, Let's, arm, put, on, your
3. in, film, the, goes, camera
4. a, picture, help, you, take, may, I
5. Danny's, can, arms, point, to, you
额定起重量为20~40t的千斤顶,在()额定起重量的试验载荷下不得失去稳定性。
A、1.2倍
B、1.3倍
C、1.4倍
D、1.5倍