Learning specialists found most boys are having, while young girls are thriving in schools.

A．To resume space station construction.
B．To practice inspection during a spacewalk.
C．To deliver supplies to keep the space station running.
D．To practice methods of repairing the vehicle’s fragile shell in orbit.

A．To earn money from visitors.
B．To protect tigers from being killed.
C．To get tiger bone used in traditional medicine.
D．To get tiger skin for an increasingly affluent Asian population.