单子叶植物种子的营养物质贮存在（）中，它的子叶只有1片，叶脉为平行脉。
参考答案：胚乳
A large crowd _______ wildly as the pilot _________ her plane safely in California.
A．had cheered; was landing
B．had cheered; landed
C．was cheering; had landed
D．was cheering; landed
血液应保存在（）范围内？
