皮皮学，免费搜题
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搜题
【单选题】
痛痛病的病因是（）A.
汞污染
B.
镉污染
C.
多氯联苯污染
D.
砷污染
E.
二氧化硫污染
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】There are also strange records, like the Englishman who ____ a small car ____ 159.6 kilogrammes ____ for thirty three seconds! [ ]
A.
has balanced; weighed; on the head
B.
balanced; weighed; by the head
C.
balanced; weighing; on his head
D.
had balanced; weighing; by his head
【单选题】quiz0407 对于以下的程序段,输出的结果为: int s=5; do{ System.out.println(s); s=3; }while(s>=5); s=1;
A.
5
B.
3
C.
1
D.
无输出