属氰苷类的化合物()
A.红景天苷
B.天麻苷
C.苦杏仁苷
D.水杨苷
E.山慈菇苷
参考答案:C
I wish I could go to Mars one day.
A.a few days.
B.that day.
C.in one day.
D.some day.
一定质量的气体的体积与其所受多的()。
A.绝对压力成反比
B.压力成反比
C.绝对压力成正比