【单选题】It ______ heavily last Saturday and there was deep snow in the garden.
【单选题】This race was her last chance to win a placeon the national team so everything was ______.
【简答题】It snowed-______ last year but not enough for us to use our snow boards, (occasion)
【单选题】下列关于电子签名的说法中不正确的是()。
D.
电子签名可以是数据电文的一个组成部分,也可以是数据电文的连接,与数据电文具有某种逻辑关系、能够使数据电文与电子文件联系。
【单选题】下列关于电子签名的说法中正确的是( )。
【单选题】All the ground was covered ______ snow last night.
【简答题】This race was her last chance to win a place on the national team so everything was ______. A. erous B. in stake C. at stake D. in charge
【简答题】大戟科植物的一个显著特征是均具有乳状汁。( )