【简答题】若cosα≠0,sinα+3cosα+1=0,则tanα=( ). (A)3/4 . (B)4/3 . (C)-3/4 . (D)-4/3 .
【简答题】证券投资的风险是指对投资者预期收益的背离,因此风险是普遍存在的。( )
【单选题】If I had , I’dvisit Europe , stopping at all the small interesting places .
A.
. a long enoughholiday
B.
. an enough long holiday
C.
. a holiday enough long
D.
. along holiday enough
【单选题】一般而言,证券投资风险是指对投资者()的背离。
【单选题】集合 A={0 , 1 , 2 , 3 , 4 , 5} , B={2 , 3 , 4} , ( )
A.
{0 , 1 , 2 , 3 , 4 , 5}
C.
{0 , 1 , 2 , 2 , 3 , 3 , 4 , 4 , 5}
【单选题】--I'm leaving for Europe on business next Saturday. --___________
【单选题】--I'm leaving for Europe on business next Saturday.--______.