As it works to open 85% of complex, items unseen since 1949 to be unveiled.
Beijing will ban high-emission vehicles from its urban areas starting Wednesday, authorities said Monday.
Of 44 people on the bus, 30 were pronounced dead at the scene and three died in hospital, said the fire authority.
A total of 29 people were working underground, 17 people were rescued uninjured, and one got hurt. Three people remained unaccounted for.
The Ministry of Environmental Protection warned that smog will hit parts of northern and central China Tuesday.
China called for international cooperation to protect infrastructure in countries against terrorist attacks.
Use power impartially and cautiously, president says in call for self-discipline.
Beijing says Tokyo promoting 'illegal territorial claim' via security treaty.
Tianzhou-1 is the first cargo spacecraft independently developed by China.
China was opposed to the test-launch and called for parties concerned to exercise restraint, said a Foreign Ministry spokesman.