But for the leadership of our Party, we ___.
A. shouldn’t succeed
B. could not have succeed
C. will not succeed
D. should not have succeeded
查看答案
You ___ the train if you ___ a little earlier.
A. could take/ started
B. could have taken/ had started
C. could take/ had started
D. could have taken / started
组织的一般组成是（ ）
A．细胞和黏合质
B．细胞和纤维
C．细胞和基质
D．细胞和间质
细胞层数最多，对机体保护能力较强的上皮是 ( )
A.单层柱状上皮
B.复层柱状上皮
C.假复层柱状纤毛上皮
D.复层扁平上皮
半桥粒位于（ ）
A．上皮细胞的侧面近游离面处
B.上皮细胞的侧面近中间连接深部
C.上皮细胞的侧面近基底面处
D.上皮细胞基底面与基膜接触处
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