发病率

Results The congenital agenesis of gallbladder is rare.It is difficult to distinguish the symptomatic cases from other biliary diseases.

结果 先天性胆囊缺如的发病率很低，有症状组病人与其他胆道疾病的鉴别较困难。

It affects about 10% to 20% of children in the world and shows a strong familial aggregation.

在世界范围内，儿童发病率在10%~ 20%之间，并且具有明显的家族聚集性。

It is a high rate of getting ague in hot area.

热带地区疟疾的发病率高。

The rate of ague is high in the tropic area.

热带地区疟疾的发病率高。

The infective ratio of ague keeps high in tropic area.

热带地区疟疾的发病率高。

Aguish is easy to break out in the tropic area.

热带地区疟疾的发病率高。

Result: Lincomycin and Spectinomycin, 0.75-1.88g/ l of the drink water for 5 d, can availably control chicken infection, and reduce incidence of the disease, air sac pathological c...

结果 ：林可-大观可溶性粉按 0 。75～ 1 88g/l饮水治疗 5d ，能有效地控制雏鸡大肠杆菌及支原体感染，降低感染鸡发病率、气囊病变指数、支原体抗体阳性率和死亡率；其效果与对照药物利高霉素 10 0相近

Gastric cancer is one of the most common malignancies in China, and is at the first place in alimentary tract malignancies.

胃癌是常见的恶性肿瘤之一，目前，我国发病率仍高居恶性肿瘤第一位。

Objective: The gastric carcinoma is the most common malignant tumor in the alimentary tract.

目的：胃癌是消化道中发病率和死亡率均占第一位的恶性肿瘤。

Despite the high incidence of intervertebral disc diseases among patients with alkaptonuria, neurologic symptoms caused by spinal disease are rare.

虽然尿黑酸病人的椎间盘疾病的发病率高，但由此引起神经症状却很少。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。