题目内容

早期胃癌是

A. 只限于粘膜内癌
B. 未侵及肌层的癌
C. 直径在2cm以内的癌
D. 无淋巴结转移的癌
E. 尚未浸润至浆膜层的癌

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______ is a high layer of cloud in the form. of small flakes or cauliflower，white in colour with no dark shadows in between.

A. cirrostratus
B. cirrus
C. stratus
D. altostratus

测定蜂王浆灰分时，马弗炉控制的温度为()。

A. 400～500℃
B. 500～600℃
C. 700～800℃
D. 800℃以上

[A] Study the following cartoon carefully and write an essay in no less than 150 words.

Suppose you have messed things up when invited by your friend Frank to an American student