皮皮学，免费搜题
登录
搜题
【多选题】
88 关于试管苗移栽说法正确的是()。A.
不要失水过多
B.
温度和光照不能太高
C.
光和能力逐步形成或加强
D.
移栽前的工作，必须经过炼苗
E.
移栽后要注意管理,防止菌类滋生、保持水分供需平衡、保证营养供应、一定的温、光条件
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Advertising media like direct mail, radio, television and newspapers ______ to increase the sales of industrial products.
A.
have been used
B.
will be used
C.
is being used
D.
has been used
【单选题】According to the passage, the primary use of the apparatus would be to______.
A.
increase the mass of a neutrino
B.
interpret the information neutrinos carry with them
C.
study the internal structure of a neutrino
D.
detect the presence of cosmic neutrinos
【单选题】Why did the numbers of married women employers increase in the 20th century? 查看材料
A.
The mechanization of housework.
B.
The married women have much spare time.
C.
The employers don't want to hire the single women.
D.
Because of their own economic uecessity and high marriage rates.
【单选题】If pollution continues to increase at the present rate, formation of aerosols (浮质) in the atmosphere will cause the onset of an ice age in about 50 years' time. This conclusion, reached by Dr. S.I. Ra...
A.
The amount of carbon dioxide increases in the atmosphere.
B.
The temperature increases due to the liberation of carbon dioxide.
C.
The planet is becoming hot because of the collection of aerosols.
D.
The formation of aerosols causes the Earth to cool down.
【单选题】The latter part of the 20th century has seen a continuous increase in economic growth, but such achievements, according to L.R. Brown, do not necessarily make up a cause for celebration.
A.
Y
B.
N
C.
NG
【单选题】氯气为黄绿色，窒息性气体，有剧毒，发生漏氯或跑氯时，处理应佩戴氧气面具或防毒面具。无防毒面具或氧气面具时，可用()捂住口鼻，并迅速离开氯气泄漏点，不能顺风离去。
A.
湿毛巾
B.
手
C.
报纸
D.
餐巾纸
【单选题】(Although) the wages for all the members of the working staff (increase regularly), so (their expenses do) for the prices for everything (are increasing dramatically) at the same time.
A.
Although
B.
increase regularly
C.
their expenses do
D.
are increasing dramatically
相关题目：
参考解析：
知识点：
题目纠错 0
发布
