题目内容

公犬膀胱手术常用的腹壁切口部位是()

A. 耻前腹中线
B. 阴茎旁2~3cm与腹中线平行
C. 胳前腹中线
D. 臁部旁2~3cm
E. 脐前中线旁2~3cm

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It is indicated in Paragraph 1 and 2 that______.

A. all airlines provide Wi-Fi Internet service
B. aircraft-communications" frequency is higher than that of Wi-Fi
C. airlines provide Wi-Fi service selectively
D. not all mobile phones" signal will interfere with navigation

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