启闭机金属表面除锈可采用人工除锈和机械除锈两种方法。
参考答案:错
The nurse is preparing to discharge a child who has rheumatic fever. Which of the following medications is prescribed to prevent recurrence of rheumatic fever
A. Glucocorticoids.B. Digoxin.C. Antibiotics.D. Anti-inflammatory medications.
外用清热解毒、内服清肺化痰的药物是()
A.轻粉
B.砒石
C.铅丹
D.炉甘石
E.硼砂