皮皮学，免费搜题
登录
搜题
【判断题】
种子发芽试验必须在最适宜的条件下进行。水分、温度、和空气是种子萌发的必要条件，某些作物种子萌发还需要光照或黑暗，不同作物种子由于长期个体发育作用的影响，萌发所需要的外界环境条件各不相同，归纳起来为水分、温度、氧气、光照。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】This book 18 passages, three written by my head teacher.
A.
includes; contained
B.
includes; containing
C.
contains; includes
D.
contains; including
【简答题】____75_______ This includes helping
【单选题】According to Sarah, recorded delivery
A.
includes all the compensation for loss.
B.
includes a certificate of posting.
C.
is perfect for sending documents of minor value.
D.
is usually handled by very particular couriers.
【单选题】在吹气式液位传感器中,随着液位的升高,平衡气室逸出的气泡量及导管压力的变化分别为________。
A.
增多，增大
B.
减少，増大
C.
增多，减小
D.
减少，减少
【单选题】The book ten units, two revisions .
A.
contains; including
B.
includes; containing
C.
includes; contained
D.
contains; included
【单选题】This box______all the books you need，______those on computer.
A.
contains;includes
B.
includes;containing
C.
including;contains
D.
contains;including
【简答题】美国人的情感控制机制是 A抑制型控制机制 B压抑型控制机制 C障碍型控制机制
相关题目：