男性，62岁，因心房颤动住院治疗，心率114次／分，心音强弱不等，心律不规则，脉搏细弱，且极不规则。此时护士应如何准确观察脉搏与心率（）。

A.先测心率，后测脉率

B.先测脉率，后测心率

C.两人分别测脉率和心率，但应同时起止

D.两人分别测脉率和心率

E.人测心率、一人测脉率

Passage One

Questions 26 to 28 are based on the passage you have just heard.

A．Because they need more protein than vegetables supply.

B．Because they cannot digest vegetables.

C．Because they use more energy than adults.

D．Because they cannot easily digest milk and milk products.