【简答题】下图是显微镜下观察到的几种细胞或组织图像( A 为口腔上皮细胞, B 为蓝藻细胞, C 为小麦叶肉细胞, D 中细胞取自猪的血液, E 为细菌细胞),请据图回答: ( 1 )科学家依据 _____________________________ 将细胞分为原核细胞和真核细胞。 ( 2 )图中属于原核细胞的是 _____________ (填标号),其细胞中唯一细胞器是 __________ 。 (...
【单选题】听力原文:W:How come you got up so early to line up? Did you need books that badly? M:I'm not spending my whole day in the line.It's a nightmare when everyone joins it, Q:What does the man imply? (17)
A.
He will be in the line for a long time.
B.
He will not line up and wait.
C.
He has had experience coming to a line and waiting for a long time.
D.
He doesn't mind getting up early because lines don't bother him.