【简答题】电流互感器以前简称为CT,文字符号为汉语拼音字头LH,现国家标准规定文字符号为()。
【简答题】电流互感器简称( ),文字符号为( )。
【单选题】有关迷路炎的错误项目是哪项:
A.
浆液性迷路炎一般预后良好,耳蜗、前庭功能障碍可以恢复。
B.
化脓性迷路炎,可并发脑膜炎,多遗有重度耳聋。
C.
病毒性腮腺炎合并迷路炎,多遗留双侧不可逆性耳聋。
D.
结核性迷路炎由中耳结核或肺结核的细菌感染引起。
【单选题】The number 4,123 is read _______.
A.
four thousand one hundred and twenty-three
B.
four thousand and one hundred twenty-three
C.
four thousand and a hundred and twenty-three
D.
four thousands a hundred and twenty-three
【单选题】Which of the following would indicate an Inmarsat-C terminal?
A.
A 9 digit number beginning with the MID.
C.
A 9 digit number always staning with 4.
D.
A 9 digit number always starting with 76.
【单选题】下列环境污染物中,属于环境内分泌干扰物的是