9.94是精确到十分位是______,保留整数是______.
9.94精确到十分位:9.94≈9.9;
9.94保留整数:9.94≈10;
故答案为:9.9;10.
We have classes _____ Monday _____ Friday.[ ]
A. at, to
B. from, to
C. from, for
D. on, on
男性患者,22岁,70kg在全身麻醉下行右鼻息肉摘除术。为减少鼻粘膜出血,局部注射1%利多卡因(含1/10万肾上腺素)。该患者可注射的最大局麻药量为()
A.65ml
B.60ml
C.55ml
D.50ml
E.45ml