What did the students find out about McKay?

A． He trained pilots for some time.

B． He lived longer than other pilots.

C． He died in the Second World War.

D． He was downed by the pilot Boelcke.

[单选题]What did the scientists do to find out if the e-nose worked?A． They presented it with all common crops..B． They fixed 13 sensors inside the device.C． They collected different damaged leaves.D． They made tests on damaged and healthy leaves.

[单选题]H．ow did the host find out there was a thief in the house?A． He heard someone breathing.B． He heard footsteps in the hall.C． He noticed a shadow on the floor.D． He noticed that his gifts were gone.

[单选题]What did scientists learn about earthquakes at the Rocky Mountain Arsenal?A．) They occur at about 4,000 metres below ground level.B．) The injection of water into earthquake faults prevents earthquakes from occurring.C．) They are usually caused by the

[问答题]What did your friend write about in her letter?

[主观题]What did (or do) you enjoy most about your last (or present) job?对与你的前一份（或现在的）工作，你最喜欢它的哪些方面？

[试题]InthisageofInternetchat,videogamesandrealitytelevision,thereisnoshortageofmindlessactivitiestokeepachildoccupied.Yet,despitethecompetition,my8-year-olddaughterRebeccawantstospendherleisuretimewritingshortstories.Shewantstoenteroneofherstoriesintoawrit

[单选题]When students are asked to find out the changes of their hometown and make

[单选题]In order to ______ the disease, the first thing we should do is to do resea

[单选题]Everybody on[board] was worried and we were curious to find out what had ha

[单选题]When students are asked to go to the local museum, libraries, etc. to find