新电灯泡的玻璃上常有一点暗红物质以除去灯泡内残留的氧,该物质是( )
A:Cu2O
B:Fe2O3
C:红磷
D:铜粉
读地球仪示意图,回答下列问题
细菌的生殖方式是( )
根据下列四则材料内容,选择正确答案。
(A) For Sale
Bicycle made in China
Good condition
Zhang Ying, 306, dormitory(寝室)4
(B) Roommate Wanted
Male(男)—English native speaker
wanted to share a 2- bedroom apartment
near campus(校园), washer, dryer, kitchen
Call Li, 288-940605 any evening after 5
(C) Lost
Black briefcase(公文包)with 3 books on physics
Call: John Smith 843-3160645
(D) Found
Brown briefcase with some money
See: Joseph Hofman in Chemistry Dept(系)
冠状动脉就是在____的基部,贴在____外面的两条动脉。它逐渐分支,深入到 ____ 中,形成____ ,然后再经过静脉,最终进入____ 。
把下列词语补充完整。
枯枝____ 晴天____ 春风____