癌性腹膜炎 A．腹壁明显紧张，强直如木板 B．腹部柔韧有抵抗力 C．前腹壁水平明显低

图1中的曲线反映的是某种商品在一定时期内的价格走势。同期，该种商品的价格变动引起其需求量发生反向变化。在其他条件不变的情况下，下列判断正确的是 [ ]

①该种商品的互补商品需求量会有所增加

②该种商品的互补需求量会有所减少

③该种商品的替代商品需求量会有所减少

④该种商品的替代商品需求量会有所增加

A．①③

B．①④

C．②③

D．②④

预防流感病毒感染的主要保护性抗体是（）

A.抗HA抗体

B.抗NA抗体

C.抗MP抗体

D.抗NP抗体

E.抗NS抗体

Yellowstone Weather

Yellowstone National Park is at high altitude. Most of the park is above 7,500 feet (2,275 meters).

Yellowstone’s weather is unpredictable. In summer, it may be warm and sunny with temperatures in the high 70F. At night in any given month, the temperature may drop close to freezing. So it is best to come prepared for cold evenings and mornings, especially if you are camping or hiking. When you leave your campsite, please leave it prepared for possible thundershowers and wind.

A sunny warm day may become fiercely stormy with wind, rain, sleet and sometimes snow. Without enough clothing, an easy hike or boat trip can turn into a battle for survival.

Seasonal Weather Information

Spring

Cold and snow continue into May, although temperatures gradually climb Early in spring, daytime temperatures average in the 40F to 50F; by late May and June, they may reach the60F and 70F. Nighttime lows fall below freezing.

Summer

Daytime temperatures are usually in the 70F, occasionally reaching the 80F in the lower elevations (高度). Nights are cool, temperatures may drop in the 40F and 30F—sometimes even the 20F. June can be cool and rainy; July and August tend to be somewhat drier, although afternoon thundershowers are common.

Fall

Weather can be pleasant, although temperatures average 10-20 degrees lower than summer readings. Nighttime lows can fall into the teens and lower. Snowstorms increase in frequency as the weeks go by or towards the end of the fall season.

Winter

Temperatures often stay near zero throughout the day, occasionally reaching high in the20F. Subzero nighttime lows are common. Annual snowfall averages nearly 150 inches in most of the park. At higher places, 200-400 inches of snow have been recorded.

The author writes this passage most probably for those who plan to () in Yellowstone National Park.

A．do research work

B．take a business trip

C．have sports games

D．spend their holidays or take a tour

某客户股票投资经验丰富，但是其所在地区经济不稳定，因而在预测客户，的股票投资收益时，业务人员有必要对这些收入进行重新估计，不可以用上一年的数值作为参考。( )

智力多元论的提出者是( )

A．吉尔福特
B．卡特尔
C．加德纳
D．斯坦伯格