题目内容

Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. (Passage 2)

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传染病预防中针对传播途径的措施是（）

A. 隔离、留验、医学观察、应急接种等
B. 预防接种、药物预防、个人防护
C. 疾病监测
D. 三级预防
E. 消毒、杀虫

哺乳动物大多属于K对策生物。( )

A. 对
B. 错

研究传染病的传播途径，有利于追踪传染源，控制传染病的发生。经过蚊虫叮咬传播的传染病有

A. 非典型性肺炎
B. 鼠疫
C. 森林脑炎
D. 禽流感
E. 猪链球菌病

下面一段程序的功能是，单击命令按钮后将D盘temp 目录下的staff.txt 文件内容读出，并在文本框Text1中显示出来。请填空。 Private Sub Command1_ Click() Dim Line As String, FileNo As Integer Dim People As String FileNo = FreeFile Open "D:\temp\staff.txt" For Input As DO While Not Line Input #FileNo, Line People = People + Line + Chr(13) + Chr(10) Loop Text1.Text = People End Sub