关于冠心病患者保持大便通畅的叙述，不正确的是A．卧床会使肠蠕动减慢B．饮食中需增加粗纤维食物C．

When ______ difficult problems, we should often take an optimistic attitude.

A．faced

B．being faced

C．facing

D．having faced

We’ll take ________ trip to Hangzhou tomorrow.

A.a two-days

B.a two-day

C.a two day’s

D.a two day

Pointsandare any two arbitrary points in a plane figure. The projections of the velocities of these two points on lineareand, respectively. The projections of the accelerations of these two points on lineareand, respectively. Then we can getand.

I don' t think we can take it ______ , some problems still remains.

A．on hand

B．by chance

C．for granted

D．at will

The words "two kinds" in Line 4 mean the countries______.

A．which have snow either as yearly happening to celebrate or as rare weather

B．which either have heavy snow or light snow

C．to which snow either causes problems or no problems

D．which either have snow-ploughs or no snow-ploughs

A．pick up any two persons

B．choose two persons who are relatives

C．take out two different persons

D．choose two persons with different intelligence

The sentence" We have people. . . down the road" (Line 4, Paragraph 2)probably means

[ A] we have people calling us for parking space two years ahead of time.

[ B] people called us for permission to use the places two years ago.

[ C] we received calls from people down the road two years ago.

[D] people called us for school vacancies two years in advance.