—The meat is _________ delicious.
—Yes, but don't eat _________.
A:too much; too much
B:much too, too much
C:too much, much too
D:much too, much too
①二氧化氯对水具有消毒、净化双效功能 ②臭氧可消除水洗物中残留的农药残留,杀灭水中的细菌病毒 ③臭氧、明矾净水原理相同 ④用Na2FeO4净水具消毒和净化双效功能.
世界上最发达的工业国家是( )
①若 m⊥α , m⊥β ,则 α//β ;②若 α⊥γ , β⊥γ ,则 α//β ;
③若 m⊂α , n⊂β , m//n ,则 α//β ;④若 m,n 是异面直线, m⊂α , m//β , n//α ,则 α//β .
其中真命题是( )