换向阀阀芯的所谓卡紧现象是由于()造成。
A.间隙太小
B.油液太粘
C.电压太低
D.阀芯被压向一侧
参考答案:D
患者,女性,48岁。患1型糖尿病30年,因感冒体温达39℃,食欲减退、恶心、呕吐及腹痛而入院。
此时抢救的最关键措施不包括()
A.小剂量持续静脉滴注胰岛素
B.补液
C.留取24小时尿,监测微量白蛋白水平
D.纠正电解质及酸碱平衡失调
E.积极控制感染
By the end of this year, a new library ________ in our school.
A would be completed B will have been completed
C had been completed D was being completed