它只在静脉里起作用，在静脉中血液流动更慢一些。It works only in the veins, where the blood flow is slower.早产婴儿必须靠静脉输入喂养。Premature babies have to be fed intravenously.长途航班上的乘客须注意可能出现深静脉血栓。Passengers on long-haul flights are being warned about th...
返回所提供的舍入到最近整数的数值表达式.Returns a supplied numeric expression rounded to the nearest integer.当然, 实数和整数的存储格式不同.Of course, reals and integers are stored in different formats.所有整数的平方根的结构是简单的.The construction of the square roots...