G．reat as Newton was, many of his ideas ____________ today and are being modified by the work of scientists of our time.

A．) are to challenge B) may be challenged

C．) have been challenged D) are challenging

 

 

[单选题]He [talked over]his ideas with his boss.A.commentedB.mentionedC.arguedD.dis

[问答题]He sets out his ideas clearly in this book.

[问答题]In his latest book, Lee Kuan Yew fearlessly expresses his ideas, seeking “t

[单选题]Under his arm ______a great package.A． was he carryingB． he was carryingC． carrying heD． was he carried

[单选题]Many lifestyle. patterns do such great harm to health that they actually speed upweakening at the human body.A．a; /B．/; theC．a; theD．/; /

[单选题]Many lifestyle. patterns do such great harm to health that they actually speed up weakening of the human body.A．a; /B．/; theC．a; theD．/; /

[试题]Many of his finest pictures are________ （悬挂）in the National museum.

[单选题]Seldom _____his wife punishes her children for speaking out their own ideas

[主观题]Many of his finest pictures are （悬挂）in the National museum.

[单选题]His grandma ______in Beijing for many years.A.livesB.livedC.has livedD.was