沉香的药用部分是
A.根及根茎
B.未开放的花
C.含树脂心材
D.干燥柱头
E.果实
参考答案:C
Read and tick or cross.(读音并判断,发音相同的画“√”,不同的画“×”)
1. play sail ( )
2. group proud ( )
3. make pay ( )
4. glove grand ( )
5. wait day ( )
6. say May ( )
一个数从右边起,万位是第5位.______.