primary source造句
1 Tobacco has collapsed as a primary source of funds.
2 The Bible is for us the primary source of authority but not the only source.
3 Work, if not career or employment, remains a primary source of goal satisfaction for all people.
4 Once the line between the conventional primary source and the secondary study is crossed, the flood is even worse.
5 The radio is the primary source of information and link to the outside world.
6 It has relied on groundnut oil as its primary source of export revenue for decades.
7 Playing basketball has never been his primary source of income.
8 Moreover, they saw their primary source of leverage-financial rewards-as less effective with the big producer.
9 The research involves the use of primary source materials in national and local archives.
10 The fishing industry was a primary source of colonists'wealth.
11 The primary source of infection was the oospore overwintered in soil and plant survival.
12 Carbon dioxide emissions are the primary source of greenhouse gases.
13 As the one of the three primary source of pollution, noise pollution has become worldwide problem and aroused earthling attention.
14 The labour market is the primary source of the inequalities which are carried into retirement.
15 Coal, traditionally a primary source of energy in the region, is also a major producer of the greenhouse gas carbon dioxide, so countries across the region are now turning to nuclear power.
16 Aside from observation, my primary source of knowledge was my education.
17 On the contrary, the generating revenue is the primary source of repayment of most loans.
18 In addition, the fishing industry was a primary source of wealth in Massachusetts.
19 The common people, considered as the primary source of political power.
20 Instead of depending upon casinos as the primary source of income as is the case for many Native American tribes, the Hualapai decided to develop the land and build up its tourism industry.
21 Historically, the primary source of lead emissions has been the result tetraethyl lead additives to gasoline.
22 Many of the villagers rely on fishing as their primary source of income.
23 Above all, they did nothing whatsoever to tackle the primary source of peasant rebelliousness: their semi-feudal exploitation.
24 For these reasons it is often difficult in many cases to trace a single primary source.
25 For most people, in short, a job is a primary source of meaning and order in their lives.
26 Sue Morris of W H Smith homed in on the primary source of the information - the consumer.
27 These lines are used if a company is unable to sell commercial paper, the primary source of short-term funding for corporations.
28 Rhodes is no doubt distressed, as Gajdusek was his primary source.
29 Stephen hole under that black Longquan, is one of the primary source water Fuyang.
30 Government data suggest that about 131, 000 households use coal as their primary source of heat, with perhaps 80, 000 more using it as a secondary source.
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