搜题请搜索小程序“爱下问搜题”
问题 单项选择题

旅游企业兼并性质相同或生产同类产品的企业，以促进企业更高程度的规模经营和迅速发展的战略称为（）。

A.密集型发展战略

B.横向一体化战略

C.兼并扩张战略

D.多样发展战略

答案

参考答案：B

单项选择题

血浆葡萄糖定量方法中，所测反应物不包括（）

A.己糖激酶法-ATP

B.O－T法-Schiff碱

C.葡萄糖脱氢酶法-NADH

D.葡萄糖氧化酶法-HO

E.己糖激酶法-NADPH
查看答案
单项选择题

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.

In low-speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high-speed networks, this approach often works poorly, because in the (71) between sending the notification and notification arriving at the source, thousands of additional (72) may arrive. In ATM network, a major tool for preventing (73) is (74) control. When a host wants a new virtual (75) , it must describe the traffic to be offered and the service expected.

73（）

A．collision

B．congestion

C．drop

D．delay
查看答案