一战后,在华盛顿会议上与会各国签订的关于中国问题的条约是[ ]
A.《九国公约》
B.《凡尔赛和约》
C.《慕尼黑协定》
D.《联合国家宣言》
答案:A
By the year 1889, there were just 541 bison ________ in the whole of North America.
A.leaving alive
B.to leave alive
C.to be left alive
D.left alive
卵巢及肝脏含有毒素的鱼有() |含组胺高的鱼有()
A.海兔
B.河豚
C.鲐巴鱼
D.泥螺
E.海参