禁止大豆进境的原因是为防止( )传入我国。 A．大豆疫病 B．地中海实蝇 C．美

Which of the following statements about the central limit theorem is least likely correct()

A．The variance of the distribution of sample means is

B．The central limit theorem has limited usefulness for skewed distributions.

C．When the sample size n is large, the distribution of the sample means is approximately normal.

恶性淋巴瘤最具特征性的临床表现是( )

A．无痛性进行性淋巴结肿大
B．肝、脾大
C．周期性发热
D．全身淋巴结红肿
E．颈部淋巴结肿大，并融合成串

如果是基于不可抗力的发生导致的后果，依照惯例和我国《合同法》规定，工程咨询机构( )由此而引起的法律后果。

A．视咨询合同情况而决定是否承担

B．承担

C．不承担

D．只在合同中有约定的情况下才承担

干粉菌种领取及使用规定是什么？