请你指出能正确表示“螳螂捕蝉,黄雀在后”这一谚语的食物链()A.阳光→蝉→螳螂→黄雀

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问题:

请你指出能正确表示“螳螂捕蝉,黄雀在后”这一谚语的食物链()

A.阳光→蝉→螳螂→黄雀

B.树→蝉→螳螂→黄雀

C.蝉→螳螂→黄雀

D.树→蝉→螳螂→黄雀

考点:生物学动物学动物学题库
题型:单项选择题
设a,b,c均为正数,且2a=log
1
2
a
(
1
2
)b=log
1
2
b
(
1
2
)c=log2c
.则a、b、c从小到大的顺序是 ______.
题型:单项选择题

Welcome A board Your Piccadilly Flight To Heathrow
The Piccadilly line to Heathrow(伦敦希思罗机场) is not only the most convenient (方便的) way to travel but also the most cost-effective. So the next time you’re traveling to Heathrow, make sure you fly Piccadilly line.
Your Piccadilly flight features:
l Departures from 36 stops on the Piccadilly line, or from over 200 stations only one change way
l Service every 5 minutes to and from Heathrow throughout the day
l Journeys from central London taking less than 50 minutes
l Only £3.70 for a single adult fare
l See tables below for journey times
Fares to and from central London
l Adult single £3.70
l Child single £1.50
If you are traveling as a group, then you are allowed to use the Family Travelcard, which means each adult can travel for £3.40 and each child for £0.80.
The group must be made up of 1 or 2 adults traveling with 1-4 children (from 09:30 Monday-Friday and at any time weekends and Public Holidays).
Members within the group do not need to be related.
Traveling to Heathrow
 
Mon — Sat
Sun
From
Journey Time
Frequency
First Train
Last Train
First Train
Last Train
Earls Court
39 mins
5 mins
05:55
00:43
07:15
23:49
Piccadilly Circus
49 mins
5 mins
05:45
00:32
07:05
23:38
 
Traveling from Heathrow
 
Mon — Sat
Sun
To
Journey Time
Frequency
First Train
Last Train
First Train
Last Train
Earls Court
34 mins
5 mins
05:13
23:49
05:57
23:30
Piccadilly Circus
45 mins
5 mins
05:13
23:49
05:57
23:30

小题1: Which of the following statements is TRUE about the Piccadilly line?
A.The Piccadilly line is the most convenient one around the world.
B.Taking the Piccadilly line can save the passengers more money.
C.The Piccadilly line is the only public transportation to Heathrow.
D.The flight from Earls Court to Piccadilly Circus takes 39 minutes.
小题2: At what time does the first train from Earls Court arrive at Heathrow on Sunday?
A.07:49.B.06:34.C.07:54.D.06:31.
小题3: If Mr. Smith wants to take the train with his five-year-old son and seven-year-old daughter at 08:00 on Sunday morning, how much should he pay?
A.£5.00.B.£6.70 .C.£5.20.D.£4.20.
小题4: When taking the Piccadilly line, whether to or from Heathrow, one may _________.
A.expect a train every 5 minutes at the stopB.get to the first stop no later than 23:30
C.get a discount once traveling in groupsD.get to the destination within 34 minutes
题型:单项选择题

右边的绘画和书法作品,展现了画家和书法家心中的奔马的神韵。请用诗或文的形式描绘你心中的奔马。要求:①必须原创;②运用比喻、比拟两种修辞手法;③不超过60字。(4分)

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袢利尿剂主要作用于髓袢升支粗段,利尿作用强,其代表药物是()。

A.布美他尼

B.呋塞米

C.依他尼酸

D.托拉塞米

E.氢氯噻嗪

题型:单项选择题

与细菌核蛋白体结合而起到抗菌作用的药物是()

A.青霉素

B.头孢霉素

C.万古霉素

D.杆菌肽

E.链霉素

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