The U.S. federal funding for research has been unsteady for years.

Look!The bird is flying__________ in the sky. Maybe it was injuried. A: unsteady B: unsteadily C: steady D: steadily

6. contact A: the state of talking or speaking B: the state of acting C: the state of communicating or meeting D: the state of laughing

Why does the existence of intermediate state in the 4-level laser can promote the production of laser beam? A: reach population inversion between ground state and metastable state B: reach population inversion between ground state and intermediate state C: reach population inversion between ground state and pumped state D: reach population inversion between intermediate state and metastable state

When the initial state and the final state are fixed, "the sum of work and heat" is the state function.

If a flow is unsteady, its ____ may change with time at a given location.（ ）。 A: Density B: All of the above C: Temperature D: Velocity

Which of the following state is not slave-holding state in 1860?

Where was Confucius born？（ ） A: Qin State B: YanState C: Lu State D: Qi State

A．touch/var/state/dhcp/dhcpd.leases B．address/var/state/dhcp/dhcpd.leases C．nat/var/state/dhcp/dhcpd.leases D．resolve/var/state/dhcp/dhcpd.leases

Three types of flow regimes are steady-state flow, __ to describe the fluid flow behavior and reservoir pressure. A: Radical flow B: Unsteady-state flow C: Pseudosteady-state flow D: linear flow