【单选题】I want to know the girl ____ you walked yesterday.
【单选题】数字证书采用公钥体制时,每个用户设定一把公钥,有本人公开,用其进行()。
【单选题】I want to know the cost ______ the book.
【单选题】I want to know the reason ___ you didn't do your homework.
【单选题】It was two years ago ______ his sister became a doctor.
【单选题】I want to join the history club because l want to know Chinese history.
【单选题】I want to know the reason _______ the fire broke out.
【单选题】下列关于苯的叙述,不正确的是 。
B.
苯有毒,短时间吸入大量苯蒸气可引起急性中毒。
D.
苯慢性中毒易导致白细胞持续增加,血小板增加。
【单选题】I want to know the way ( )he treated you yesterday.
【单选题】I want to know the owner of the house and ask for information about it. [ ]