小冬在自制酸碱指示剂的探究活动记录如下,由下表判断,不能做指示剂的是 序号植物的

题型:选择题

问题:

小冬在自制酸碱指示剂的探究活动记录如下,由下表判断,不能做指示剂的是

序号植物的汁液在酸性溶液中在中性溶液中在碱性溶液中
A牵牛花瓣红色紫色蓝色
B胡萝卜橙色橙色橙色
C紫萝卜皮红色紫色黄绿色
D月季花瓣浅红色红色黄色

考点:中和反应及在实际中的应用酸的性质碱的性质
题型:选择题
The Americans were getting ready to send their first man to the moon, an old Irishman (爱尔兰人) was _    _ them on TV in a hotel room. There was an Englishman in the room__    . And he said to the Irishman, “The Americans are very _    _, aren’t they? They are going to send some men to the moon. It’s a very _     way from our world.” “Oh, that’s _    ,”the Irishman answered quickly.” “The Irishman are going to send some men to the sun in months’ _    _. That’s much _     away than the moon, you know. “The Englishman was very _     when he heard this. “Oh, yes it is,” he said, “But the sun is too _     for people to visit.”
The Irishman laughed and answered, “Well, the Irish are clever, too, you know. We _     go to the sun during the day, of course. We’ll go there during the night.”
小题1:
A.readingB.watchingC.makingD.mending
小题2:
A.tooB.alsoC.of courseD.only
小题3:
A.kindB.badC.cleverD.good
小题4:
A.short B.longC.farD.near
小题5:
A.nothingB.allC.wrongD.great
小题6:
A.laterB.agoC.long agoD.time
小题7:
A.farB.neverC.fartherD.longer
小题8:
A.angryB.surprisedC.gladD.sorry
小题9:
A.warmB.bigC.coldD.hot
小题10:
A.don’tB.won’tC.want toD.must
题型:选择题

患者女,50岁,因体检发现AFP升高至600mg/dl,入院体检:神志清,腹平软,肝脾未及,腹部B超示:“小肝癌”,患者肝脏肿块大小应为()

A.≤5.5cm

B.≤5cm

C.≤4.5cm

D.≤3cm

E.≤2cm

题型:选择题

一列火车从甲地到乙地历经5 个中间站用了1.5 h ,已知火车的平均速度是60 km/h ,甲、乙两地的距离是______km。

题型:选择题

认真分析谁是真正的购买者这往往会影响到企业的营销战略。

题型:选择题

泵轴轴向平行度不应超过()。

A.5/1000

B.0.5/1000

C.5/100

D.0.5/100

更多题库