2019年mpa考试英语真题——连词478

{01}Most birds find it safe to sleep in the trees, but          they have eggs or young chicks, they don"t use a nest.
A.why
B.how
C.unless
D.where
解析：
本题选C。

{02}It is obvious to the students ______ they should get well   prepared for their future.    
A.as                                
B.which    
C.whether                        
D.that
解析：
本题选D。