n'est pas une bijection sur

est une bijection paire décroissante sur à valeurs dans .

est une bijection paire décroissante sur à valeurs dans .

est une bijection paire croissante sur à valeurs dans .

a disk

her computer

a new computer

a hard drive

She needs them to make a phone call.

The files belonged to someone else.

She needs them to cure a virus.

Her personal files were on the hard disk.

She wants to copy a disk.

She wants to buy a computer.

She wants to know about her computer.

She wants to know about the man's computer.

Send out a survey in an e-mail.

Create more products to sell.

Increase money spent on online advertising.

Conduct a survey over the internet.

They do not have enough money now.

There may be another reason for low sales.

They don't have enough time.

Their ads are terrible.

They do not have enough money now.

No one is replying to a survey.

Their sales figures are poor.

Their ads are terrible.

Order more letterhead paper and envelopes.

Ask Michael to send the letter for him.

Ask a coworker if he has any extra paper and envelopes.