For a successful conversation, one needs not have a good understanding of context.（)

A.0-初应力(0.3σcon)-σcon

B.0-初应力(0.2σcon)-σcon

C.0-初应力(0.6σcon)-σcon

D.0-初应力(0.6σcon)-1.2σcon

A.0→初应力→102%σcon(持荷2min)→95%σcon→σcon

B.0→初应力→102%σcon(持荷2min)→90%σcon→σcon

C.0→初应力→105%σcon(持荷2min)→90%σcon→σcon

D.0→初应力→105%σcon(持荷2min)→95%σcon→σcon

It is known that solar power can ______ electric energy.

A．convert into

B．convert to

C．be converted into

D．be converted to

In Henry's experiment，the galvanometer indicated a voltage when______.

A. the coil was connected to a battery

B. the coil was disconnected to a battery

C. neither A nor B

D. both A and B

It’s a good idea. We’ll discuss the details of ________.

A. its plan

B.our scheme

C.their conspiracy

D.our cooperation

A. sooner or later

B. pro or con

C. now and then

D. To take dancing lessons

E. Put him in prison

F. here and there

G. when will I get out of jail

H. Very much

A thief with a long record was brought before a judge.

Judge: Have you ever stolen things？

Thief. Oh, (56) .

According to the passage, what attracts man's greater attention？

A. Fly ash.

B. The construction of dams, bricks, and roads.

C. Extracting aluminum, silicon, and magnetic from ash.

D. The available technology.

A.sociable

B.interested

C.successful

D.extrovert

What's the key to a successful student according to the passage？ ______.

A．Circumstances

B．Methods

C．Teachers

D．Motivation

This article suggests that if one wants to be successful he should have ______.

A．luck

B．abilities

C．hard work

D．both B and C