通过鼠标对直线上夹点的操作,不能完成的是()
A.改变直线长度
B.旋转该直线
C.打断该直线
D.镜像该直线
参考答案:C
男,58岁,2型糖尿病,因大叶性肺炎,发生糖尿病酮症酸中毒昏迷,治疗时以下列哪项为主
A.补充液体和电解质,积极纠正酸中毒B.小剂量胰岛素治疗,积极纠正酸中毒C.小剂量胰岛素治疗,补充液体和平衡电解质D.小剂量胰岛素,中枢兴奋剂E.积极纠正酸中毒,中枢兴奋剂
The achievements of the greatest minds in science could never have been reached if it had not been for the patient and accurate work of hundreds of other people.
A.has it not been
B.if it had been
C.if hasn't been
D.had it not been