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【单选题】
装配图的读图方法首先看标题栏,了解部件的名称,识图、分析零件视图时,首先( )。A.
找出俯视图
B.
找出主视图
C.
查看明细栏
D.
查看技术文件
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反馈参考答案：
举一反三
【简答题】（1）已知椭圆C： x 2 a 2 + y 2 b 2 =1(a＞b＞0) 的离心率为 6 3 ，椭圆C上任意一点到椭圆两焦点的距离和为6．求椭圆C的方程； （2）直线l：y=kx+1与双曲线C：2x 2 -y 2 =1的右支交于不同的两点A、B．求实数k的取值范围．
【单选题】If the supply of money is greater than the amount of money people want to hold, then
A.
spending will increase and the price level will fall.
B.
spending will increase and the price level will rise.
C.
spending will increase and the rate of interest will rise.
D.
non of the above; the amount of money supplied is never greater than the amount people want to hold.
【单选题】According to the passage, if incomes and prices rise together ______.
A.
money will hold its value
B.
inflation is still a trouble
C.
inflation will not be a problem
D.
businesses will be prosperous
【简答题】已知椭圆方程为 x 2 6 + y 2 3 =1，则其离心率为______．
【单选题】The wind is gentle. Gentle in this sentence should be translated as ______.
A.
轻柔的
B.
绅士的
C.
文雅的
【单选题】People forgo interest and hold money:
A.
because they are required to.
B.
to reduce their transactions costs.
C.
because there are no substitutes for money.
D.
because banks are too risky.
【单选题】(As gentle as possible), and (with help from) an assistant, the veterinarian examined the hippo to determine (if) (she) was pregnant.
A.
As gentle as possible
B.
with help from
C.
if
D.
she
【简答题】It was a woman’s voice, a gentle voice, so gentle that it was ________
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