【单选题】It can be inferred from the passage that________.
A.
astronauts will have deformed children of grandchildren
B.
radiation is not a threat to well protection space explorers
C.
the Apollo mission was very successful
D.
protection from space radiation is no easy job
【单选题】存在定义int a[10] ,x, * pa,若pa=&a[0] ,下列的哪个选项和其他3个选项不是等价的?
【简答题】http://v.qq.com/x/page/e0837eq4cke.html视频中涉及的是什么类型的口译________
【单选题】已知等差数列{a n }中,首项a 1 =-1,公差d=3,则a 3 =( )