某秤最大秤量为3t,重复性测试时误差小于0.3e,首次检定时,至少应具备的砝码量为()
A.600kg
B.1050kg
C.1000kg
D.500kg
参考答案:B
——It was the drug,not the disease,that killed the boy.
——He would be still alive today if he ________ that drug.
A.not take
B.shouldn’t have taken
C.didn’t take
D.hadn’t taken
文明健康的婚礼的基本要求是什么?