滴虫 * * 炎症的 * * 灌洗液是（）。
A.0.5%醋酸
B.1%乳酸
C.1%醋酸
D.碳酸氢钠
E.高锰酸钾
参考答案：B
Jolene began building a picket fence by planting stakes in a row; the stakes were evenly spaced. After planting the first 10 stakes, Jolene measured the length of the row and found that the row was 27 feet long. She continued the row by planting another 10 stakes, then measured the length of the entire row. How many feet long was the row of stakes Jolene had planted
A．37
B．54
C．57
D．60
E．(E) 81
硬磁材料是指（）和矫顽力均很大的铁磁材料。
A.硬度
B.强度
C.剩磁
D.导电性
