单项选择题

玫瑰(Rosa rugosa)与蔷薇、月季(R．chinensis)的区别在于玫瑰茎上具皮刺。( )
A．正确
B．错误

A.chinensis)的区别在于玫瑰茎上具皮刺。(
B.正确
B．错误

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单项选择题

Thomas Edison is spoken of because______.A．he also tried to invent a sewing machineB．he got some of his ideas from dreamsC．he was one of Howe's best friendsD．he also had difficulty in falling asleep

A.
A．he
B.he
C.he
D.he

单项选择题

若有以下程序 main( ){ intc； c=10^5； printf(％dkn，c)；) 则程序的输出结果是（）

A．15
B．10000
C．5
D．105

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