tRNA的二级结构是()
A.双螺旋
B.超螺旋
C.线型
D.三叶草型
E.倒L型
参考答案:D
使用如下的SQL语句查询数据库: SELECT bonus FROM salary WHERE bonus BETWEEN 1 AND 250 OR(bonus IN (190, 500, 600)
AND bonus BETWEEN 250 AND 500);请问这个SQL语句将返回如下的哪个值A.100B.260C.400D.600
.
I dislike__________when I am left alone to start a conversation with a stranger.
A.that
B.this
C.it
D.one