不属于婴幼儿二便的卫生习惯是()。
A. 学会向成人表示便意
B. 自己脱裤子
C. 随时随地排便
D. 使用卫生纸,洗手
68岁的男性良性前列腺肥大患者,近日体检发现血压偏高(150/100mmHg),以下哪种药对其两种疾病都有效()
A. 可乐定
B. 普萘洛尔
C. 肼屈嗪
D. 特拉唑嗪
E. 硝苯地平
The amount of fuel delivered for each cycle must be in accordance with the engine load, and the same quantity of fuel must be delivered to each cylinder for each power stroke at that load.Which of the following statements describes this requirement?()
A. Proper timing
B. Accurate metering
C. Suitable injection rate
D. Suitable atomization rate
以下哪些是DNS服务器()
A. Proxyserver
B. Forwarderserver
C. Slaveserver
D. Cacheonlyserver