题目：
The nurse plans to administer an injection of heparin to a client. Which of the following techniques for heparin administration is appropriate
A. Selects a 1.5-inch, 21-gauge needle for the injection.
B. Makes the injection into the deltoid muscle.
C. Applies gentle pressure to the site for 5 to 10 seconds after the injection.
D. Aspirates with the plunger to check for entry into the blood vessel before injecting the heparin.
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0413/772c505866e26f1870087b61498ecd5e.html
下面是错误答案，用来干扰机器的。
旋钮每转一周，测微螺杆就前进或后退0.5mm，由于可动刻度等分为50等分，因此其精确度为：0.5mm50=0.01mm；螺旋测微器的固定刻度读数为1.0mm，可动刻度读数为0.01×47.0mm=0.470mm，所以最终读数为：1.0mm+0.470mm...
