皮皮学，免费搜题
登录
搜题
【简答题】
Another Downey ________ remarks, "I am so upset.They don't respect the public at all."
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】利用不同性质的有机染料可对细胞中不同成分进行选择性染色,下列哪种结果有误? ( )
A.
碘液可使口腔上皮细胞的细胞质和细胞核呈深浅不同的棕黄色
B.
吉姆萨染液可以使细胞或染色体呈紫红色或橘红色。
C.
甲基绿可使RNA分子呈蓝绿色。
D.
派洛宁可使分子呈红色。
【单选题】利用不同性质有机染料可对细胞中不同成分选择性染色,下列 ( ) 结果有误
A.
碘液可使口腔上皮细胞的细胞质和细胞核呈深浅不同的棕黄色
B.
吉姆萨染液可使细胞核或染色体呈紫红色或桔红色
C.
甲基绿可使 RNA 分子呈蓝绿色
D.
派洛宁可使 RNA 分子呈红色
E.
苏木精可使细胞内核酸呈蓝色
【单选题】What is the instruction the passengers must remember?
A.
Memorize the plate number of the bus.
B.
Try the pastries.
C.
Ask for a 10% discount.
D.
Be back in an hour.
【单选题】Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths f...
A.
Test evacuations showed that putting on the smoke hoods ridded considerably to the overall time it took passengers to leave the cabin.
B.
Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive.
C.
Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting.
D.
Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff.
E.
In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane.
【单选题】Passengers must notify airline crews in advance when carrying baggage in excess of the maximum weight _______of 60lbs.
A.
approval
B.
allowance
C.
consent
D.
measures
相关题目：
参考解析：
知识点：
题目纠错 0
发布
