根据所给汉语和句子意思，用英语补全句子。

1.As we all know, waste water and gas ______________________(对……有不良影响)the environment.

2.A pair of pandas __________________(赠送)to Australia months ago, which represents the friendship between Australian and Chinese people.

3.---Do you often use Baidu ?

---Yes, it’s one of ____________________________(最受欢迎的)Internet search engines.

肾病综合征与狼疮性肾炎的鉴别，不支持后者的是（）

A.多发生于育龄妇女

B.多有发热、皮疹及多关节痛

C.血中可找到狼疮细胞

D.多以水肿为主要表现

E.抗核抗体阳性