某种生物细胞发生如图所示生理活动时,下列判断正确的是( )
A:该细胞不能进行光合作用
B:该细胞不能进行有氧呼吸
C:该细胞不能进行有丝分裂
D:该细胞能进行联会
如图,圆O的直径AB=8,C为圆周上一点,BC=4,过点C作圆的切线l,过点A作直线l的垂线AD,点D为垂足,AD与圆O交于点E,则线段AE的长为____.
根据短文理解,选择正确答案。
Do you like travelling? If so, come to our travel service.
4-day Qingdao Private(私人的) Tour
Qingdao has beautiful sunshine, white beaches and clean water. You can walk along the beaches and enjoy the fresh air.
Price:
1 person
2-5 persons
6-9 persons
¥669
¥550/person
¥530/ person
5-day Taiwan Group Tour
Taiwan is a wonderful place. You can climb A-li Mountain, go boating in Sun Moon Lake.
Price : ¥8,500 Call us at 800-850-8288
8-day London Private Tour
Come to London for a few days to enjoy the Thames(泰晤士河) and visit Big Ben .
Price: ¥16,800 Call us at 800-830-7288
call us at 800-810-6288