[判断题]The registrar had decided not to enter the black people’s names in the voting book.

[判断题]

The registrar had decided not to enter the black people’s names in the voting book.

[填空题]Professor Black had us (write) ______ composition every Friday.

[填空题]It had been decided that measures should be taken to bring _____ the costs of the projects.

[填空题]Coretta Scott King had been the first black to enroll in Antioch College in Yellow Springs, Ohio.

[填空题]

A．Did
B．inform
C．with
D．had been decided

(Did) anyone (inform) you (with) the change of the schedule that (had been decided) yesterday

[单项选择]Mary decided to study harder ________ enter a good university.
A. so that B. in order to C. for

[单项选择]A man once had a dream about the Black Forest in Germany. In his dream he was walking in the f1orest when two men ran out and tried to throw him to the ground. He ran off as fast as he could, but they followed him. He reached a place where he saw two roads in front of him, one to the right and the other to the left. Which road should he take He heard the two men behind him, getting nearer, and at the same time he heard a voice in his ear. It told him to go to the right, and he did so. He ran on and soon came to a small hotel. He was received there kindly and given a room, and he was saved from the two men. That was the dream.
Twenty years later he was really in the Black Forest and, as happened in the dream long ago, two men ran out and tried to throw him down. He ran off, and came to a place with two roads, like in the dream. He remembered the dream and took the road to the right. He soon reached a small hotel, was taken in, and so was safe. His dream of twenty years before ha
A. They tried to push the man to the ground.
B. They followed the man.
C. Both[A]

[填空题]black powder

[单项选择]　Black Holes 　　Most scientists agree that black holes exist but are nearly impossible to locate.A black hole in the universe is not a solid object,like a planet,but it is shaped like a sphere (球体).Astronomers(天文学家)think that at the center of a black hole there is a single point in space with infinite(无限的)density(稠密).This single point is called a singularity (奇点).If the singularity theory is correct,it means that when a massive star collapses,all the material in it disappears into the singularity.The center of a black hole would not really be a hole at all,but an infinitely dense point.Anything that crosses the black hole is pulled in by its great gravity. 　　Although black holes do exist,they are difficult to observe.These are the reasons. 　　● No light or anything else comes out of black holes.As a result,they are invisible to a telescope. 　　● In astronomical terms,black holes are truly.For example,a black hole formed by the collapse of a giant star would have an event horizon(视
A. Right
B. Wrong
C. Not mentioned