招标单位对招标文件所作的任何修改或补充的内容,发给所有获得招标文件的投标单位,须在投标截止时间至少()日前。
A.7
B.10
C.15
D.20
参考答案:C
A priority nursing diagnosis during the first 24 hours following an MI is
A.Ineffective cardiac tissue perfusion.
B.Risk for infection.
C.Deficient fluid volume.
D.Constipation.
把浮筒室的放空阀打开时必须先把上下游的()阀()