【多选题】用双缩脲反应鉴别盐酸麻黄碱时,所用的试剂有
【单选题】The yield on five-year deals has ( ) to 4.3 per cent from 5 per cent in 2001.在2001年,这种五年期存款的收益从2001年的5%下降到4.3%。
【多选题】双缩脲反应鉴别盐酸麻黄碱时,需用的试剂为
【单选题】Japanese invest in the region is expected to increase in the future
A.
to seventy-five per cent of Japan's total investment.
B.
by one hundred and fifty per cent.
C.
to ninety per cent of the Thai auto market.
【多选题】节肢动物的体壁组成,从外到内是由( )组成。