转化糖浆
参考答案：
砂糖经加水和加酸煮至相当时间和温度冷却后加碱中和即为糖浆，可经久保存而不结晶，多数用在中点月饼皮，萨琪玛和各种代替砂糖的产品中。
一波源在左绳端发出半个波①,频率f1,振幅A1;当此波源刚起振时绳 右端的另一波源也恰好起振,发出半个波②,频率f2(f2>f1),振幅A2,P为绳的中点,如图所示.下列说法错误的是( )
A．两列波同时到达P点
B．两列波相遇时P点波峰值可达到A1+A2
C．两列波相遇再分开后,各处保持原波形传播
D．因频率不同,这两列波相遇不能叠加
As part of the respiratory assessment, the nurse observes the neonate's nares for patency and mucus. Which of the following is the reason that the nurse employs this assessment
A．Neonates are obligate nose breathers.
B．Nasal patency is required for adequate feeding.
C．Problems with nasal patency may cause flaring.
D．A deviated septum will interfere with breathing.
