1型糖尿病患者必须用
A．胰岛素B．二甲双胍C．格列本脲D．甲苯磺丁脲E．甲巯咪唑(他巴唑)
参考答案：A
解析：1型糖尿病患者必须用胰岛素。
It was not until I was injured in a car accident ______ the real American society．
A．that I found out
B．when I found out
C．did I find out
D．that did I find out
同步带传动的传动比一般都比其他带传动大。（）
