证券是指各类记载并代表一定( )的法律凭证。它用以证明持有人有权依其所持凭证记载的内容而取得应有的( )。
A.权益;权利B.权利;权益C.利益;权力D.权力;利益
参考答案:B
根据音标拼写单词,使句子意思完整正确
1. He [spend]_________ too much time playing with them.
2. It’s my first time to ________ [ju:z] the computer.
3. I usually go to bed at 9:00 but I can’t go to _______ [sli:p] at once
4. He is busy _______ organizing the activities
5. They are good _______
与SSPE发生有关的病毒是
A.中和抗体B.NK细胞C.补体结合抗体D.CTLE.干扰素