“若SIP为假。“S”与“P”的外延关系只能是()。
A.全同关系
B.全异关系
C.从属关系
D.交叉关系
参考答案:B
In English class, our teacher often creates an environment _____ we are given the opportunity to
solve problems ourselves. [ ]
A. when
B. which
C. where
D. that
大多数脑膜瘤起源于()
A.脉络丛上皮细胞
B.室管膜上皮细胞
C.蛛网膜颗粒细胞
D.血管内皮细胞
E.脑膜成纤维细胞