A / AN ______ IS A PERSON WHO IS TRAINED FOR TRAVELING IN A SPACECR...

2. - KIEM TRA CHAT LUONG DAU NAM ANH 12
KIEM TRA CHAT LUONG DAU NAM ANH 12

2. A / an ______ is a person who is trained for traveling in a

spacecraft.

A. astronaut

B. scientist

C. engineer

D. technician