测量油品密度时，以液体弯月面（）与密度计相接触面的水平刻线为准。
A、最下缘
B、最上缘
C、中间
D、以上都不对
参考答案：A
根据句意及所给单词的首字母提示填空。
1. The start of the New Year is the b of a l0-day celebration.
2. Halloween is very popular in the w countries.
3. He cut his finger with a s knife.
4. The old man lives here. He is the o of this house.
5. Rice dumplings are the t food of Chinese for the Dragon Boat Festival.
需要免疫标志检查才能诊断的急性髓系白血病（AML）类型是（）。
A．AML-M0
B．AML-M1
C．AML-M2
D．AML-M3
E．AML-M5
