主产于四川，为报春花科植物过路黄干燥全草的药材是（）
A.金钱草
B.广藿香
C.石斛
D.薄荷
E.穿心莲
参考答案：A
阅读对话，判断正误，正确的写“T”，错误的写“F”。
Jenny: The water is cold.
Li Ming: What's the temperature of the water?
Jenny: It's ten degrees. Outside is cold, too.
Li Ming: Yes. It's snowy today.
Jenny: What's the temperature outside?
Li Ming: It's eleven degrees below zero.
( ) 1. The water is hot.
( ) 2. Outside is cold.
( ) 3. Today is snowy.
( ) 4. Outside is thirty degrees.
金属上被锉掉的冲刻字迹的显现方法有（）。
A.电解法
B.静电压痕显现法
C.化学腐蚀法
D.磁性粉末显现法
