[判断题]格拉段旅客列车开车前还应由列车调度员（有人站、应急值守站为车站值班员）确认出站信号开放（行车凭证交付）后通知司机，司机在接到旅客乘降完毕及出站信号（发车进路）好了的通知后按点（晚点列车为接到通知后）开车。
A.正确
B.错误

A multinational corporation is a corporate enterprise, which though headquartered in one country, conducts its operations through branches that it owns or controls around the world. The organizations, mostly based in the United States, Western Europe, and Japan, have become major actors on the international stage, for some of them are wealthier than many of the countries they operate in. The less developed countries often welcome the multinationals because they are a source of investment and jobs. Yet their presence has its drawbacks, for these organizations soon develop immense political and economic influence in the host countries. Development becomes concentrated in a few industries that are oriented to the needs of the outsiders; profits are frequently exported rather than reinvested; and local benefits go mainly to a small ruling group whose interests are tied to those of the foreigners rather than to those of their own people. The effect is to further increase export depend
A. They limit the host countries’ control of their own economies.
B. Profits are frequently exported rather than reinvested.
C. Various industries develop in the host country.
D. They increase the host countries’ export dependency.

You have been badly injured in a car accident. It is necessary to give you a blood transfusion(输血) because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you.
There are four basic types of blood: A, B, AB and O. A simple test can indicate a person’ s blood type. Everybody is born with one of these four types of blood. Blood type, like hair color and height, is inherited from parents.
Because of substances contained in each type, the four groups must be transfused carefully. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; hence, it is often called the universal donor (通用献血者). For the opposite reason, AB is sometimes called universal recipient. However, because so many reactions can occur in transfusions, patients usually receive only salt or plasma
A. There is no relationship between blood and nationality.
B. Almost all of some American Indian groups have type O.
C. Blood type isn't inherited from parents.
D. Among Europeans and people of European ancestry, the rarest is type O.